Register for undo/redo notifications so we can hide the suggestions

list. Fixes the urlbar font size. (bug 159606)
This commit is contained in:
pinkerton%netscape.com 2002-08-14 22:11:02 +00:00
Родитель 9069418c32
Коммит 640d1ca539
8 изменённых файлов: 32 добавлений и 1334 удалений

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 2002 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Joe Hewitt <hewitt@netscape.com> (Original Author)
* David Haas <haasd@cae.wisc.edu>
*/
#import <AppKit/AppKit.h>
#import "CHAutoCompleteDataSource.h"
#include "nsIAutoCompleteSession.h"
#include "nsIAutoCompleteResults.h"
#include "nsIAutoCompleteListener.h"
@class CHAutoCompleteDataSource, CHPageProxyIcon;
@interface CHAutoCompleteTextField : NSTextField
{
IBOutlet CHPageProxyIcon *mProxyIcon;
NSWindow *mPopupWin;
NSTableView *mTableView;
CHAutoCompleteDataSource *mDataSource;
nsIAutoCompleteSession *mSession;
nsIAutoCompleteResults *mResults;
nsIAutoCompleteListener *mListener;
NSString *mSearchString;
// used to remember if backspace was pressed in complete: so we can check this in controlTextDidChange
BOOL mBackspaced;
// determines if the search currently pending should complete the default result when it is ready
BOOL mCompleteResult;
// should the autocomplete fill in the default completion into the text field? The default
// is no, but this can be set with a user default pref.
BOOL mCompleteWhileTyping;
NSTimer *mOpenTimer;
}
- (void) setSession:(NSString *)aSession;
- (NSString *) session;
- (void) setPageProxyIcon:(NSImage *)aImage;
- (NSTableView *) tableView;
- (int) visibleRows;
- (void) startSearch:(NSString*)aString complete:(BOOL)aComplete;
- (void) performSearch;
- (void) dataReady:(nsIAutoCompleteResults*)aResults status:(AutoCompleteStatus)aStatus;
- (void) searchTimer:(NSTimer *)aTimer;
- (void) clearResults;
- (void) completeDefaultResult;
- (void) completeSelectedResult;
- (void) completeResult:(int)aRow;
- (void) enterResult:(int)aRow;
- (void) revertText;
- (void) selectRowAt:(int)aRow;
- (void) selectRowBy:(int)aRows;
- (void) openPopup;
- (void) closePopup;
- (void) resizePopup;
- (BOOL) isOpen;
- (void) onRowClicked:(NSNotification *)aNote;
- (void) onBlur:(NSNotification *)aNote;
- (void) onResize:(NSNotification *)aNote;
- (void) setStringUndoably:(NSString*)aString fromLocation:(unsigned int)aLocation;
- (id) fieldEditor;
@end

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@ -1,574 +0,0 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 2002 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Joe Hewitt <hewitt@netscape.com> (Original Author)
* David Haas <haasd@cae.wisc.edu>
*/
#import "CHAutoCompleteTextField.h"
#import "BrowserWindowController.h"
#import "CHPageProxyIcon.h"
#include "nsIServiceManager.h"
#include "nsMemory.h"
#include "nsString.h"
#include "CHUserDefaults.h"
static const int kMaxRows = 6;
static const int kFrameMargin = 1;
@interface AutoCompleteWindow : NSWindow
- (BOOL)isKeyWindow;
@end
@implementation AutoCompleteWindow
- (BOOL)isKeyWindow
{
return YES;
}
@end
class AutoCompleteListener : public nsIAutoCompleteListener
{
public:
AutoCompleteListener(CHAutoCompleteTextField* aTextField)
{
NS_INIT_REFCNT();
mTextField = aTextField;
}
NS_DECL_ISUPPORTS
NS_IMETHODIMP OnStatus(const PRUnichar* aText) { return NS_OK; }
NS_IMETHODIMP SetParam(nsISupports *aParam) { return NS_OK; }
NS_IMETHODIMP GetParam(nsISupports **aParam) { return NS_OK; }
NS_IMETHODIMP OnAutoComplete(nsIAutoCompleteResults *aResults, AutoCompleteStatus aStatus)
{
[mTextField dataReady:aResults status:aStatus];
return NS_OK;
}
private:
CHAutoCompleteTextField *mTextField;
};
NS_IMPL_ISUPPORTS1(AutoCompleteListener, nsIAutoCompleteListener)
////////////////////////////////////////////////////////////////////////
@implementation CHAutoCompleteTextField
- (void) awakeFromNib
{
NSTableColumn *column;
NSScrollView *scrollView;
NSCell *dataCell;
mSearchString = nil;
mBackspaced = NO;
mCompleteResult = NO;
mOpenTimer = nil;
mSession = nsnull;
mResults = nsnull;
mListener = (nsIAutoCompleteListener *)new AutoCompleteListener(self);
NS_IF_ADDREF(mListener);
[self setDelegate: self];
// XXX the owner of the textfield should set this
[self setSession:@"history"];
// construct and configure the popup window
mPopupWin = [[AutoCompleteWindow alloc] initWithContentRect:NSMakeRect(0,0,0,0)
styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO];
[mPopupWin setReleasedWhenClosed:NO];
[mPopupWin setLevel:NSFloatingWindowLevel];
[mPopupWin setHasShadow:YES];
[mPopupWin setAlphaValue:0.9];
// construct and configure the view
mTableView = [[[NSTableView alloc] initWithFrame:NSMakeRect(0,0,0,0)] autorelease];
[mTableView setIntercellSpacing:NSMakeSize(1, 2)];
[mTableView setTarget:self];
[mTableView setAction:@selector(onRowClicked:)];
// Create the icon column if we have a proxy icon
if (mProxyIcon) {
column = [[[NSTableColumn alloc] initWithIdentifier:@"icon"] autorelease];
[column setWidth:[mProxyIcon frame].origin.x + [mProxyIcon frame].size.width];
dataCell = [[[NSImageCell alloc] initImageCell:nil] autorelease];
[column setDataCell:dataCell];
[mTableView addTableColumn: column];
}
// create the text columns
column = [[[NSTableColumn alloc] initWithIdentifier:@"col1"] autorelease];
[mTableView addTableColumn: column];
column = [[[NSTableColumn alloc] initWithIdentifier:@"col2"] autorelease];
[[column dataCell] setTextColor:[NSColor darkGrayColor]];
[mTableView addTableColumn: column];
// hide the table header
[mTableView setHeaderView:nil];
// construct the scroll view that contains the table view
scrollView = [[[NSScrollView alloc] initWithFrame:NSMakeRect(0,0,0,0)] autorelease];
[scrollView setHasVerticalScroller:YES];
[[scrollView verticalScroller] setControlSize:NSSmallControlSize];
[scrollView setDocumentView: mTableView];
// construct the datasource
mDataSource = [[CHAutoCompleteDataSource alloc] init];
[mTableView setDataSource: mDataSource];
[mPopupWin setContentView:scrollView];
// listen for when window resigns from key handling
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onBlur:)
name:NSWindowDidResignKeyNotification object:nil];
// listen for when window is about to be moved or resized
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onBlur:)
name:NSWindowWillMoveNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onResize:)
name:NSWindowDidResizeNotification object:nil];
// read the user default on if we should auto-complete the text field as the user
// types or make them pick something from a list (a-la mozilla).
mCompleteWhileTyping = [[NSUserDefaults standardUserDefaults] boolForKey:USER_DEFAULTS_AUTOCOMPLETE_WHILE_TYPING];
}
- (void) dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
if (mSearchString)
[mSearchString release];
[mPopupWin release];
[mDataSource release];
NS_IF_RELEASE(mSession);
NS_IF_RELEASE(mResults);
NS_IF_RELEASE(mListener);
[super dealloc];
}
- (void) setSession:(NSString *)aSession
{
NS_IF_RELEASE(mSession);
// XXX add aSession to contract id
nsCOMPtr<nsIAutoCompleteSession> session =
do_GetService("@mozilla.org/autocompleteSession;1?type=history");
mSession = session;
NS_IF_ADDREF(mSession);
}
- (NSString *) session
{
// XXX return session name
return @"";
}
- (NSTableView *) tableView
{
return mTableView;
}
- (int) visibleRows
{
int minRows = [mDataSource rowCount];
return minRows < kMaxRows ? minRows : kMaxRows;
}
- (void) setPageProxyIcon:(NSImage *)aImage
{
[mProxyIcon setImage:aImage];
}
-(id) fieldEditor
{
return [[self window] fieldEditor:NO forObject:self];
}
// searching ////////////////////////////
- (void) startSearch:(NSString*)aString complete:(BOOL)aComplete
{
if (mSearchString)
[mSearchString release];
mSearchString = [aString retain];
mCompleteResult = aComplete;
if ([self isOpen]) {
[self performSearch];
} else {
// delay the search when the popup is not yet opened so that users
// don't see a jerky flashing popup when they start typing for the first time
if (mOpenTimer) {
[mOpenTimer invalidate];
[mOpenTimer release];
}
mOpenTimer = [[NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(searchTimer:)
userInfo:nil repeats:NO] retain];
}
}
- (void) performSearch
{
PRUnichar* chars = nsMemory::Alloc(([mSearchString length]+1) * sizeof(PRUnichar));
[mSearchString getCharacters:chars];
chars[[mSearchString length]] = 0; // I shouldn't have to do this
nsresult rv = mSession->OnStartLookup(chars, mResults, mListener);
nsMemory::Free(chars);
if (NS_FAILED(rv))
NSLog(@"Unable to perform autocomplete lookup");
}
- (void) dataReady:(nsIAutoCompleteResults*)aResults status:(AutoCompleteStatus)aStatus
{
NS_IF_RELEASE(mResults);
mResults = nsnull;
if (aStatus == nsIAutoCompleteStatus::failed) {
[mDataSource setErrorMessage:@""];
} else if (aStatus == nsIAutoCompleteStatus::ignored) {
[mDataSource setErrorMessage:@""];
} else if (aStatus == nsIAutoCompleteStatus::noMatch) {
[mDataSource setErrorMessage:@""];
} else if (aStatus == nsIAutoCompleteStatus::matchFound) {
mResults = aResults;
NS_IF_ADDREF(mResults);
[mDataSource setResults:aResults];
[self completeDefaultResult];
}
if ([mDataSource rowCount] > 0) {
[mTableView noteNumberOfRowsChanged];
[self openPopup];
} else {
[self closePopup];
}
}
- (void) searchTimer:(NSTimer *)aTimer
{
[mOpenTimer release];
mOpenTimer = nil;
[self performSearch];
}
- (void) clearResults
{
// clear out search data
if (mSearchString)
[mSearchString release];
mSearchString = nil;
NS_IF_RELEASE(mResults);
mResults = nsnull;
[mDataSource setResults:nil];
[self closePopup];
}
// handling the popup /////////////////////////////////
- (void) openPopup
{
[self resizePopup];
// show the popup
if ([mPopupWin isVisible] == NO)
[mPopupWin orderFront:nil];
}
- (void) resizePopup
{
NSRect locationFrame, winFrame;
NSPoint locationOrigin;
int tableHeight;
if ([self visibleRows] == 0) {
[self closePopup];
return;
}
// get the origin of the location bar in coordinates of the root view
locationFrame = [[self superview] frame];
locationOrigin = [[[self superview] superview] convertPoint:locationFrame.origin
toView:[[[self window] contentView] superview]];
// get the height of the table view
winFrame = [[self window] frame];
tableHeight = (int)([mTableView rowHeight]+[mTableView intercellSpacing].height)*[self visibleRows];
// make the columns split the width of the popup
[[mTableView tableColumnWithIdentifier:@"col1"] setWidth:locationFrame.size.width/2];
// position the popup anchored to bottom/left of location bar (
[mPopupWin setFrame:NSMakeRect(winFrame.origin.x + locationOrigin.x + kFrameMargin,
((winFrame.origin.y + locationOrigin.y) - tableHeight) - kFrameMargin,
locationFrame.size.width - (2*kFrameMargin),
tableHeight) display:NO];
}
- (void) closePopup
{
[mPopupWin close];
}
- (BOOL) isOpen
{
return [mPopupWin isVisible];
}
// url completion ////////////////////////////
- (void) completeDefaultResult
{
PRInt32 defaultRow;
mResults->GetDefaultItemIndex(&defaultRow);
if (mCompleteResult && mCompleteWhileTyping) {
[self selectRowAt:defaultRow];
[self completeResult:defaultRow];
} else {
[self selectRowAt:-1];
}
}
- (void) completeSelectedResult
{
[self completeResult:[mTableView selectedRow]];
}
- (void) completeResult:(int)aRow
{
if (aRow < 0 && mSearchString) {
// reset to the original search string with the insertion point at the end. Note
// we have to make our range before we call setStringUndoably: because it calls
// clearResults() which destroys |mSearchString|.
NSRange selectAtEnd = NSMakeRange([mSearchString length],0);
[self setStringUndoably:mSearchString fromLocation:0];
[[self fieldEditor] setSelectedRange:selectAtEnd];
}
else {
if ([mDataSource rowCount] <= 0)
return;
// Fill in the suggestion from the list, but change only the text
// after what is typed and select just that part. This allows the
// user to see what they have typed and what change the autocomplete
// makes while allowing them to continue typing w/out having to
// reset the insertion point.
NSString *result = [mDataSource resultString:aRow column:@"col1"];
NSRange matchRange = [result rangeOfString:mSearchString];
if (matchRange.length > 0 && matchRange.location != NSNotFound) {
unsigned int location = matchRange.location + matchRange.length;
result = [result substringWithRange:NSMakeRange(location, [result length]-location)];
[self setStringUndoably:result fromLocation:[mSearchString length]];
}
}
}
- (void) enterResult:(int)aRow
{
if (aRow >= 0 && [mDataSource rowCount] > 0) {
[self setStringUndoably:[mDataSource resultString:[mTableView selectedRow] column:@"col1"] fromLocation:0];
[self closePopup];
} else if (mOpenTimer) {
// if there was a search timer going when we hit enter, cancel it
[mOpenTimer invalidate];
[mOpenTimer release];
mOpenTimer = nil;
}
}
- (void) revertText
{
BrowserWindowController *controller = (BrowserWindowController *)[[self window] windowController];
NSString *url = [[controller getBrowserWrapper] getCurrentURLSpec];
if (url) {
[self clearResults];
NSTextView *fieldEditor = [self fieldEditor];
[[fieldEditor undoManager] removeAllActions];
[fieldEditor setString:url];
[fieldEditor selectAll:self];
}
}
- (void) setStringUndoably:(NSString *)aString fromLocation:(unsigned int)aLocation
{
NSTextView *fieldEditor = [self fieldEditor];
NSRange aRange = NSMakeRange(aLocation,[[fieldEditor string] length] - aLocation);
if ([fieldEditor shouldChangeTextInRange:aRange replacementString:aString]) {
[[fieldEditor textStorage] replaceCharactersInRange:aRange withString:aString];
// Whenever we send [self didChangeText], we trigger the
// textDidChange method, which will begin a new search with
// a new search string (which we just inserted) if the selection
// is at the end of the string. So, we "select" the first character
// to prevent that badness from happening.
[fieldEditor setSelectedRange:NSMakeRange(0,0)];
[fieldEditor didChangeText];
}
aRange = NSMakeRange(aLocation,[[fieldEditor string] length] - aLocation);
[fieldEditor setSelectedRange:aRange];
}
// selecting rows /////////////////////////////////////////
- (void) selectRowAt:(int)aRow
{
if (aRow >= -1 && [mDataSource rowCount] > 0) {
// show the popup
if ([mPopupWin isVisible] == NO)
[mPopupWin orderFront:nil];
[mTableView selectRow:aRow byExtendingSelection:NO];
[mTableView scrollRowToVisible: aRow];
}
}
- (void) selectRowBy:(int)aRows
{
int row = [mTableView selectedRow];
if (row == -1 && aRows < 0) {
// if nothing is selected and you scroll up, go to last row
row = [mTableView numberOfRows]-1;
} else if (row == [mTableView numberOfRows]-1 && aRows == 1) {
// if the last row is selected and you scroll down, go to first row
row = 0;
} else if (aRows+row < 0) {
// if you scroll up beyond first row...
if (row == 0)
row = -1; // ...and first row is selected, select nothing
else
row = 0; // ...else, go to first row
} else if (aRows+row >= [mTableView numberOfRows]) {
// if you scroll down beyond the last row...
if (row == [mTableView numberOfRows]-1)
row = 0; // and last row is selected, select first row
else
row = [mTableView numberOfRows]-1; // else, go to last row
} else {
// no special case, just increment current row
row += aRows;
}
[self selectRowAt:row];
}
// event handlers ////////////////////////////////////////////
- (void) onRowClicked:(NSNotification *)aNote
{
[self enterResult:[mTableView clickedRow]];
[[[self window] windowController] goToLocationFromToolbarURLField:self];
}
- (void) onBlur:(NSNotification *)aNote
{
[self closePopup];
}
- (void) onResize:(NSNotification *)aNote
{
[self resizePopup];
}
// NSTextField delegate //////////////////////////////////
- (void)controlTextDidChange:(NSNotification *)aNote
{
NSTextView *fieldEditor = [[aNote userInfo] objectForKey:@"NSFieldEditor"];
NSRange range = [fieldEditor selectedRange];
// make sure we're typing at the end of the string
if (range.location == [[fieldEditor string] length]) {
// when we ask for a NSTextView string, Cocoa returns
// a pointer to the view's backing store. So, the value
// of the string continually changes as we edit the text view.
// Since we'll edit the text view as we add in autocomplete results,
// we've got to make a copy of the string as it currently stands
// to know what we were searching for in the first place.
NSString *searchString = [[fieldEditor string] copyWithZone:nil];
[self startSearch:searchString complete:!mBackspaced];
[searchString release];
}
else if (([mTableView selectedRow] == -1) || mBackspaced)
[self clearResults];
mBackspaced = NO;
}
- (void)controlTextDidEndEditing:(NSNotification *)aNote
{
[self closePopup];
[[[[aNote userInfo] objectForKey:@"NSFieldEditor"] undoManager] removeAllActions];
}
- (BOOL)control:(NSControl *)control textView:(NSTextView *)textView doCommandBySelector:(SEL)command
{
if (command == @selector(insertNewline:)) {
[self enterResult:[mTableView selectedRow]];
} else if (command == @selector(moveUp:)) {
[self selectRowBy:-1];
[self completeSelectedResult];
return YES;
} else if (command == @selector(moveDown:)) {
[self selectRowBy:1];
[self completeSelectedResult];
return YES;
} else if (command == @selector(scrollPageUp:)) {
[self selectRowBy:-kMaxRows];
[self completeSelectedResult];
} else if (command == @selector(scrollPageDown:)) {
[self selectRowBy:kMaxRows];
[self completeSelectedResult];
} else if (command == @selector(moveToBeginningOfDocument:)) {
[self selectRowAt:0];
[self completeSelectedResult];
} else if (command == @selector(moveToEndOfDocument:)) {
[self selectRowAt:[mTableView numberOfRows]-1];
[self completeSelectedResult];
} else if (command == @selector(insertTab:)) {
if ([mPopupWin isVisible]) {
[self selectRowBy:1];
[self completeSelectedResult];
return YES;
}
} else if (command == @selector(deleteBackward:) ||
command == @selector(deleteForward:)) {
// if the user deletes characters, we need to know so that
// we can prevent autocompletion later when search results come in
if ([[textView string] length] > 1)
mBackspaced = YES;
}
return NO;
}
@end

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@ -85,6 +85,7 @@
- (void) onRowClicked:(NSNotification *)aNote;
- (void) onBlur:(NSNotification *)aNote;
- (void) onResize:(NSNotification *)aNote;
- (void) onUndoOrRedo:(NSNotification *)aNote;
- (void) setStringUndoably:(NSString*)aString fromLocation:(unsigned int)aLocation;
- (id) fieldEditor;

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@ -91,6 +91,7 @@ NS_IMPL_ISUPPORTS1(AutoCompleteListener, nsIAutoCompleteListener)
mListener = (nsIAutoCompleteListener *)new AutoCompleteListener(self);
NS_IF_ADDREF(mListener);
[self setFont:[NSFont controlContentFontOfSize:0]];
[self setDelegate: self];
// XXX the owner of the textfield should set this
@ -151,6 +152,14 @@ NS_IMPL_ISUPPORTS1(AutoCompleteListener, nsIAutoCompleteListener)
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onResize:)
name:NSWindowDidResizeNotification object:nil];
// listen for Undo/Redo to make sure autocomplete doesn't get horked.
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onUndoOrRedo:)
name:NSUndoManagerDidRedoChangeNotification
object:[[self fieldEditor] undoManager]];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onUndoOrRedo:)
name:NSUndoManagerDidUndoChangeNotification
object:[[self fieldEditor] undoManager]];
// read the user default on if we should auto-complete the text field as the user
// types or make them pick something from a list (a-la mozilla).
mCompleteWhileTyping = [[NSUserDefaults standardUserDefaults] boolForKey:USER_DEFAULTS_AUTOCOMPLETE_WHILE_TYPING];
@ -501,6 +510,11 @@ NS_IMPL_ISUPPORTS1(AutoCompleteListener, nsIAutoCompleteListener)
[self resizePopup];
}
- (void) onUndoOrRedo:(NSNotification *)aNote
{
[self clearResults];
}
// NSTextField delegate //////////////////////////////////
- (void)controlTextDidChange:(NSNotification *)aNote
{

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@ -1,92 +0,0 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 2002 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Joe Hewitt <hewitt@netscape.com> (Original Author)
* David Haas <haasd@cae.wisc.edu>
*/
#import <AppKit/AppKit.h>
#import "CHAutoCompleteDataSource.h"
#include "nsIAutoCompleteSession.h"
#include "nsIAutoCompleteResults.h"
#include "nsIAutoCompleteListener.h"
@class CHAutoCompleteDataSource, CHPageProxyIcon;
@interface CHAutoCompleteTextField : NSTextField
{
IBOutlet CHPageProxyIcon *mProxyIcon;
NSWindow *mPopupWin;
NSTableView *mTableView;
CHAutoCompleteDataSource *mDataSource;
nsIAutoCompleteSession *mSession;
nsIAutoCompleteResults *mResults;
nsIAutoCompleteListener *mListener;
NSString *mSearchString;
// used to remember if backspace was pressed in complete: so we can check this in controlTextDidChange
BOOL mBackspaced;
// determines if the search currently pending should complete the default result when it is ready
BOOL mCompleteResult;
// should the autocomplete fill in the default completion into the text field? The default
// is no, but this can be set with a user default pref.
BOOL mCompleteWhileTyping;
NSTimer *mOpenTimer;
}
- (void) setSession:(NSString *)aSession;
- (NSString *) session;
- (void) setPageProxyIcon:(NSImage *)aImage;
- (NSTableView *) tableView;
- (int) visibleRows;
- (void) startSearch:(NSString*)aString complete:(BOOL)aComplete;
- (void) performSearch;
- (void) dataReady:(nsIAutoCompleteResults*)aResults status:(AutoCompleteStatus)aStatus;
- (void) searchTimer:(NSTimer *)aTimer;
- (void) clearResults;
- (void) completeDefaultResult;
- (void) completeSelectedResult;
- (void) completeResult:(int)aRow;
- (void) enterResult:(int)aRow;
- (void) revertText;
- (void) selectRowAt:(int)aRow;
- (void) selectRowBy:(int)aRows;
- (void) openPopup;
- (void) closePopup;
- (void) resizePopup;
- (BOOL) isOpen;
- (void) onRowClicked:(NSNotification *)aNote;
- (void) onBlur:(NSNotification *)aNote;
- (void) onResize:(NSNotification *)aNote;
- (void) setStringUndoably:(NSString*)aString fromLocation:(unsigned int)aLocation;
- (id) fieldEditor;
@end

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@ -1,574 +0,0 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 2002 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Joe Hewitt <hewitt@netscape.com> (Original Author)
* David Haas <haasd@cae.wisc.edu>
*/
#import "CHAutoCompleteTextField.h"
#import "BrowserWindowController.h"
#import "CHPageProxyIcon.h"
#include "nsIServiceManager.h"
#include "nsMemory.h"
#include "nsString.h"
#include "CHUserDefaults.h"
static const int kMaxRows = 6;
static const int kFrameMargin = 1;
@interface AutoCompleteWindow : NSWindow
- (BOOL)isKeyWindow;
@end
@implementation AutoCompleteWindow
- (BOOL)isKeyWindow
{
return YES;
}
@end
class AutoCompleteListener : public nsIAutoCompleteListener
{
public:
AutoCompleteListener(CHAutoCompleteTextField* aTextField)
{
NS_INIT_REFCNT();
mTextField = aTextField;
}
NS_DECL_ISUPPORTS
NS_IMETHODIMP OnStatus(const PRUnichar* aText) { return NS_OK; }
NS_IMETHODIMP SetParam(nsISupports *aParam) { return NS_OK; }
NS_IMETHODIMP GetParam(nsISupports **aParam) { return NS_OK; }
NS_IMETHODIMP OnAutoComplete(nsIAutoCompleteResults *aResults, AutoCompleteStatus aStatus)
{
[mTextField dataReady:aResults status:aStatus];
return NS_OK;
}
private:
CHAutoCompleteTextField *mTextField;
};
NS_IMPL_ISUPPORTS1(AutoCompleteListener, nsIAutoCompleteListener)
////////////////////////////////////////////////////////////////////////
@implementation CHAutoCompleteTextField
- (void) awakeFromNib
{
NSTableColumn *column;
NSScrollView *scrollView;
NSCell *dataCell;
mSearchString = nil;
mBackspaced = NO;
mCompleteResult = NO;
mOpenTimer = nil;
mSession = nsnull;
mResults = nsnull;
mListener = (nsIAutoCompleteListener *)new AutoCompleteListener(self);
NS_IF_ADDREF(mListener);
[self setDelegate: self];
// XXX the owner of the textfield should set this
[self setSession:@"history"];
// construct and configure the popup window
mPopupWin = [[AutoCompleteWindow alloc] initWithContentRect:NSMakeRect(0,0,0,0)
styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO];
[mPopupWin setReleasedWhenClosed:NO];
[mPopupWin setLevel:NSFloatingWindowLevel];
[mPopupWin setHasShadow:YES];
[mPopupWin setAlphaValue:0.9];
// construct and configure the view
mTableView = [[[NSTableView alloc] initWithFrame:NSMakeRect(0,0,0,0)] autorelease];
[mTableView setIntercellSpacing:NSMakeSize(1, 2)];
[mTableView setTarget:self];
[mTableView setAction:@selector(onRowClicked:)];
// Create the icon column if we have a proxy icon
if (mProxyIcon) {
column = [[[NSTableColumn alloc] initWithIdentifier:@"icon"] autorelease];
[column setWidth:[mProxyIcon frame].origin.x + [mProxyIcon frame].size.width];
dataCell = [[[NSImageCell alloc] initImageCell:nil] autorelease];
[column setDataCell:dataCell];
[mTableView addTableColumn: column];
}
// create the text columns
column = [[[NSTableColumn alloc] initWithIdentifier:@"col1"] autorelease];
[mTableView addTableColumn: column];
column = [[[NSTableColumn alloc] initWithIdentifier:@"col2"] autorelease];
[[column dataCell] setTextColor:[NSColor darkGrayColor]];
[mTableView addTableColumn: column];
// hide the table header
[mTableView setHeaderView:nil];
// construct the scroll view that contains the table view
scrollView = [[[NSScrollView alloc] initWithFrame:NSMakeRect(0,0,0,0)] autorelease];
[scrollView setHasVerticalScroller:YES];
[[scrollView verticalScroller] setControlSize:NSSmallControlSize];
[scrollView setDocumentView: mTableView];
// construct the datasource
mDataSource = [[CHAutoCompleteDataSource alloc] init];
[mTableView setDataSource: mDataSource];
[mPopupWin setContentView:scrollView];
// listen for when window resigns from key handling
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onBlur:)
name:NSWindowDidResignKeyNotification object:nil];
// listen for when window is about to be moved or resized
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onBlur:)
name:NSWindowWillMoveNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onResize:)
name:NSWindowDidResizeNotification object:nil];
// read the user default on if we should auto-complete the text field as the user
// types or make them pick something from a list (a-la mozilla).
mCompleteWhileTyping = [[NSUserDefaults standardUserDefaults] boolForKey:USER_DEFAULTS_AUTOCOMPLETE_WHILE_TYPING];
}
- (void) dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
if (mSearchString)
[mSearchString release];
[mPopupWin release];
[mDataSource release];
NS_IF_RELEASE(mSession);
NS_IF_RELEASE(mResults);
NS_IF_RELEASE(mListener);
[super dealloc];
}
- (void) setSession:(NSString *)aSession
{
NS_IF_RELEASE(mSession);
// XXX add aSession to contract id
nsCOMPtr<nsIAutoCompleteSession> session =
do_GetService("@mozilla.org/autocompleteSession;1?type=history");
mSession = session;
NS_IF_ADDREF(mSession);
}
- (NSString *) session
{
// XXX return session name
return @"";
}
- (NSTableView *) tableView
{
return mTableView;
}
- (int) visibleRows
{
int minRows = [mDataSource rowCount];
return minRows < kMaxRows ? minRows : kMaxRows;
}
- (void) setPageProxyIcon:(NSImage *)aImage
{
[mProxyIcon setImage:aImage];
}
-(id) fieldEditor
{
return [[self window] fieldEditor:NO forObject:self];
}
// searching ////////////////////////////
- (void) startSearch:(NSString*)aString complete:(BOOL)aComplete
{
if (mSearchString)
[mSearchString release];
mSearchString = [aString retain];
mCompleteResult = aComplete;
if ([self isOpen]) {
[self performSearch];
} else {
// delay the search when the popup is not yet opened so that users
// don't see a jerky flashing popup when they start typing for the first time
if (mOpenTimer) {
[mOpenTimer invalidate];
[mOpenTimer release];
}
mOpenTimer = [[NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(searchTimer:)
userInfo:nil repeats:NO] retain];
}
}
- (void) performSearch
{
PRUnichar* chars = nsMemory::Alloc(([mSearchString length]+1) * sizeof(PRUnichar));
[mSearchString getCharacters:chars];
chars[[mSearchString length]] = 0; // I shouldn't have to do this
nsresult rv = mSession->OnStartLookup(chars, mResults, mListener);
nsMemory::Free(chars);
if (NS_FAILED(rv))
NSLog(@"Unable to perform autocomplete lookup");
}
- (void) dataReady:(nsIAutoCompleteResults*)aResults status:(AutoCompleteStatus)aStatus
{
NS_IF_RELEASE(mResults);
mResults = nsnull;
if (aStatus == nsIAutoCompleteStatus::failed) {
[mDataSource setErrorMessage:@""];
} else if (aStatus == nsIAutoCompleteStatus::ignored) {
[mDataSource setErrorMessage:@""];
} else if (aStatus == nsIAutoCompleteStatus::noMatch) {
[mDataSource setErrorMessage:@""];
} else if (aStatus == nsIAutoCompleteStatus::matchFound) {
mResults = aResults;
NS_IF_ADDREF(mResults);
[mDataSource setResults:aResults];
[self completeDefaultResult];
}
if ([mDataSource rowCount] > 0) {
[mTableView noteNumberOfRowsChanged];
[self openPopup];
} else {
[self closePopup];
}
}
- (void) searchTimer:(NSTimer *)aTimer
{
[mOpenTimer release];
mOpenTimer = nil;
[self performSearch];
}
- (void) clearResults
{
// clear out search data
if (mSearchString)
[mSearchString release];
mSearchString = nil;
NS_IF_RELEASE(mResults);
mResults = nsnull;
[mDataSource setResults:nil];
[self closePopup];
}
// handling the popup /////////////////////////////////
- (void) openPopup
{
[self resizePopup];
// show the popup
if ([mPopupWin isVisible] == NO)
[mPopupWin orderFront:nil];
}
- (void) resizePopup
{
NSRect locationFrame, winFrame;
NSPoint locationOrigin;
int tableHeight;
if ([self visibleRows] == 0) {
[self closePopup];
return;
}
// get the origin of the location bar in coordinates of the root view
locationFrame = [[self superview] frame];
locationOrigin = [[[self superview] superview] convertPoint:locationFrame.origin
toView:[[[self window] contentView] superview]];
// get the height of the table view
winFrame = [[self window] frame];
tableHeight = (int)([mTableView rowHeight]+[mTableView intercellSpacing].height)*[self visibleRows];
// make the columns split the width of the popup
[[mTableView tableColumnWithIdentifier:@"col1"] setWidth:locationFrame.size.width/2];
// position the popup anchored to bottom/left of location bar (
[mPopupWin setFrame:NSMakeRect(winFrame.origin.x + locationOrigin.x + kFrameMargin,
((winFrame.origin.y + locationOrigin.y) - tableHeight) - kFrameMargin,
locationFrame.size.width - (2*kFrameMargin),
tableHeight) display:NO];
}
- (void) closePopup
{
[mPopupWin close];
}
- (BOOL) isOpen
{
return [mPopupWin isVisible];
}
// url completion ////////////////////////////
- (void) completeDefaultResult
{
PRInt32 defaultRow;
mResults->GetDefaultItemIndex(&defaultRow);
if (mCompleteResult && mCompleteWhileTyping) {
[self selectRowAt:defaultRow];
[self completeResult:defaultRow];
} else {
[self selectRowAt:-1];
}
}
- (void) completeSelectedResult
{
[self completeResult:[mTableView selectedRow]];
}
- (void) completeResult:(int)aRow
{
if (aRow < 0 && mSearchString) {
// reset to the original search string with the insertion point at the end. Note
// we have to make our range before we call setStringUndoably: because it calls
// clearResults() which destroys |mSearchString|.
NSRange selectAtEnd = NSMakeRange([mSearchString length],0);
[self setStringUndoably:mSearchString fromLocation:0];
[[self fieldEditor] setSelectedRange:selectAtEnd];
}
else {
if ([mDataSource rowCount] <= 0)
return;
// Fill in the suggestion from the list, but change only the text
// after what is typed and select just that part. This allows the
// user to see what they have typed and what change the autocomplete
// makes while allowing them to continue typing w/out having to
// reset the insertion point.
NSString *result = [mDataSource resultString:aRow column:@"col1"];
NSRange matchRange = [result rangeOfString:mSearchString];
if (matchRange.length > 0 && matchRange.location != NSNotFound) {
unsigned int location = matchRange.location + matchRange.length;
result = [result substringWithRange:NSMakeRange(location, [result length]-location)];
[self setStringUndoably:result fromLocation:[mSearchString length]];
}
}
}
- (void) enterResult:(int)aRow
{
if (aRow >= 0 && [mDataSource rowCount] > 0) {
[self setStringUndoably:[mDataSource resultString:[mTableView selectedRow] column:@"col1"] fromLocation:0];
[self closePopup];
} else if (mOpenTimer) {
// if there was a search timer going when we hit enter, cancel it
[mOpenTimer invalidate];
[mOpenTimer release];
mOpenTimer = nil;
}
}
- (void) revertText
{
BrowserWindowController *controller = (BrowserWindowController *)[[self window] windowController];
NSString *url = [[controller getBrowserWrapper] getCurrentURLSpec];
if (url) {
[self clearResults];
NSTextView *fieldEditor = [self fieldEditor];
[[fieldEditor undoManager] removeAllActions];
[fieldEditor setString:url];
[fieldEditor selectAll:self];
}
}
- (void) setStringUndoably:(NSString *)aString fromLocation:(unsigned int)aLocation
{
NSTextView *fieldEditor = [self fieldEditor];
NSRange aRange = NSMakeRange(aLocation,[[fieldEditor string] length] - aLocation);
if ([fieldEditor shouldChangeTextInRange:aRange replacementString:aString]) {
[[fieldEditor textStorage] replaceCharactersInRange:aRange withString:aString];
// Whenever we send [self didChangeText], we trigger the
// textDidChange method, which will begin a new search with
// a new search string (which we just inserted) if the selection
// is at the end of the string. So, we "select" the first character
// to prevent that badness from happening.
[fieldEditor setSelectedRange:NSMakeRange(0,0)];
[fieldEditor didChangeText];
}
aRange = NSMakeRange(aLocation,[[fieldEditor string] length] - aLocation);
[fieldEditor setSelectedRange:aRange];
}
// selecting rows /////////////////////////////////////////
- (void) selectRowAt:(int)aRow
{
if (aRow >= -1 && [mDataSource rowCount] > 0) {
// show the popup
if ([mPopupWin isVisible] == NO)
[mPopupWin orderFront:nil];
[mTableView selectRow:aRow byExtendingSelection:NO];
[mTableView scrollRowToVisible: aRow];
}
}
- (void) selectRowBy:(int)aRows
{
int row = [mTableView selectedRow];
if (row == -1 && aRows < 0) {
// if nothing is selected and you scroll up, go to last row
row = [mTableView numberOfRows]-1;
} else if (row == [mTableView numberOfRows]-1 && aRows == 1) {
// if the last row is selected and you scroll down, go to first row
row = 0;
} else if (aRows+row < 0) {
// if you scroll up beyond first row...
if (row == 0)
row = -1; // ...and first row is selected, select nothing
else
row = 0; // ...else, go to first row
} else if (aRows+row >= [mTableView numberOfRows]) {
// if you scroll down beyond the last row...
if (row == [mTableView numberOfRows]-1)
row = 0; // and last row is selected, select first row
else
row = [mTableView numberOfRows]-1; // else, go to last row
} else {
// no special case, just increment current row
row += aRows;
}
[self selectRowAt:row];
}
// event handlers ////////////////////////////////////////////
- (void) onRowClicked:(NSNotification *)aNote
{
[self enterResult:[mTableView clickedRow]];
[[[self window] windowController] goToLocationFromToolbarURLField:self];
}
- (void) onBlur:(NSNotification *)aNote
{
[self closePopup];
}
- (void) onResize:(NSNotification *)aNote
{
[self resizePopup];
}
// NSTextField delegate //////////////////////////////////
- (void)controlTextDidChange:(NSNotification *)aNote
{
NSTextView *fieldEditor = [[aNote userInfo] objectForKey:@"NSFieldEditor"];
NSRange range = [fieldEditor selectedRange];
// make sure we're typing at the end of the string
if (range.location == [[fieldEditor string] length]) {
// when we ask for a NSTextView string, Cocoa returns
// a pointer to the view's backing store. So, the value
// of the string continually changes as we edit the text view.
// Since we'll edit the text view as we add in autocomplete results,
// we've got to make a copy of the string as it currently stands
// to know what we were searching for in the first place.
NSString *searchString = [[fieldEditor string] copyWithZone:nil];
[self startSearch:searchString complete:!mBackspaced];
[searchString release];
}
else if (([mTableView selectedRow] == -1) || mBackspaced)
[self clearResults];
mBackspaced = NO;
}
- (void)controlTextDidEndEditing:(NSNotification *)aNote
{
[self closePopup];
[[[[aNote userInfo] objectForKey:@"NSFieldEditor"] undoManager] removeAllActions];
}
- (BOOL)control:(NSControl *)control textView:(NSTextView *)textView doCommandBySelector:(SEL)command
{
if (command == @selector(insertNewline:)) {
[self enterResult:[mTableView selectedRow]];
} else if (command == @selector(moveUp:)) {
[self selectRowBy:-1];
[self completeSelectedResult];
return YES;
} else if (command == @selector(moveDown:)) {
[self selectRowBy:1];
[self completeSelectedResult];
return YES;
} else if (command == @selector(scrollPageUp:)) {
[self selectRowBy:-kMaxRows];
[self completeSelectedResult];
} else if (command == @selector(scrollPageDown:)) {
[self selectRowBy:kMaxRows];
[self completeSelectedResult];
} else if (command == @selector(moveToBeginningOfDocument:)) {
[self selectRowAt:0];
[self completeSelectedResult];
} else if (command == @selector(moveToEndOfDocument:)) {
[self selectRowAt:[mTableView numberOfRows]-1];
[self completeSelectedResult];
} else if (command == @selector(insertTab:)) {
if ([mPopupWin isVisible]) {
[self selectRowBy:1];
[self completeSelectedResult];
return YES;
}
} else if (command == @selector(deleteBackward:) ||
command == @selector(deleteForward:)) {
// if the user deletes characters, we need to know so that
// we can prevent autocompletion later when search results come in
if ([[textView string] length] > 1)
mBackspaced = YES;
}
return NO;
}
@end

Просмотреть файл

@ -85,6 +85,7 @@
- (void) onRowClicked:(NSNotification *)aNote;
- (void) onBlur:(NSNotification *)aNote;
- (void) onResize:(NSNotification *)aNote;
- (void) onUndoOrRedo:(NSNotification *)aNote;
- (void) setStringUndoably:(NSString*)aString fromLocation:(unsigned int)aLocation;
- (id) fieldEditor;

Просмотреть файл

@ -91,6 +91,7 @@ NS_IMPL_ISUPPORTS1(AutoCompleteListener, nsIAutoCompleteListener)
mListener = (nsIAutoCompleteListener *)new AutoCompleteListener(self);
NS_IF_ADDREF(mListener);
[self setFont:[NSFont controlContentFontOfSize:0]];
[self setDelegate: self];
// XXX the owner of the textfield should set this
@ -151,6 +152,14 @@ NS_IMPL_ISUPPORTS1(AutoCompleteListener, nsIAutoCompleteListener)
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onResize:)
name:NSWindowDidResizeNotification object:nil];
// listen for Undo/Redo to make sure autocomplete doesn't get horked.
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onUndoOrRedo:)
name:NSUndoManagerDidRedoChangeNotification
object:[[self fieldEditor] undoManager]];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onUndoOrRedo:)
name:NSUndoManagerDidUndoChangeNotification
object:[[self fieldEditor] undoManager]];
// read the user default on if we should auto-complete the text field as the user
// types or make them pick something from a list (a-la mozilla).
mCompleteWhileTyping = [[NSUserDefaults standardUserDefaults] boolForKey:USER_DEFAULTS_AUTOCOMPLETE_WHILE_TYPING];
@ -501,6 +510,11 @@ NS_IMPL_ISUPPORTS1(AutoCompleteListener, nsIAutoCompleteListener)
[self resizePopup];
}
- (void) onUndoOrRedo:(NSNotification *)aNote
{
[self clearResults];
}
// NSTextField delegate //////////////////////////////////
- (void)controlTextDidChange:(NSNotification *)aNote
{