Merge pull request #176 from grendello/RichTextView_Mac
Implemented RichTextViewBackend for Mac
This commit is contained in:
Lluis Sanchez
Коммит
b750c315d9
|
|
@ -116,6 +116,7 @@
|
||||||
<Compile Include="Xwt.Mac\ListBoxBackend.cs" />
|
<Compile Include="Xwt.Mac\ListBoxBackend.cs" />
|
||||||
<Compile Include="Xwt.Mac\DialogBackend.cs" />
|
<Compile Include="Xwt.Mac\DialogBackend.cs" />
|
||||||
<Compile Include="Xwt.Mac\MacSystemInformation.cs" />
|
<Compile Include="Xwt.Mac\MacSystemInformation.cs" />
|
||||||
|
<Compile Include="Xwt.Mac\RichTextViewBackend.cs" />
|
||||||
</ItemGroup>
|
</ItemGroup>
|
||||||
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
|
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
|
||||||
<ItemGroup>
|
<ItemGroup>
|
||||||
|
|
|
||||||
|
|
@ -108,6 +108,7 @@ namespace Xwt.Mac
|
||||||
RegisterBackend <Xwt.Backends.IMenuButtonBackend, MenuButtonBackend> ();
|
RegisterBackend <Xwt.Backends.IMenuButtonBackend, MenuButtonBackend> ();
|
||||||
RegisterBackend <Xwt.Backends.IListBoxBackend, ListBoxBackend> ();
|
RegisterBackend <Xwt.Backends.IListBoxBackend, ListBoxBackend> ();
|
||||||
RegisterBackend <Xwt.Backends.IDialogBackend, DialogBackend> ();
|
RegisterBackend <Xwt.Backends.IDialogBackend, DialogBackend> ();
|
||||||
|
RegisterBackend <Xwt.Backends.IRichTextViewBackend, RichTextViewBackend> ();
|
||||||
}
|
}
|
||||||
|
|
||||||
public override void RunApplication ()
|
public override void RunApplication ()
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,352 @@
|
||||||
|
//
|
||||||
|
// RichTextViewBackend.cs
|
||||||
|
//
|
||||||
|
// Author:
|
||||||
|
// Marek Habersack <grendel@xamarin.com>
|
||||||
|
//
|
||||||
|
// Copyright (c) 2013 Xamarin, Inc.
|
||||||
|
//
|
||||||
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
// of this software and associated documentation files (the "Software"), to deal
|
||||||
|
// in the Software without restriction, including without limitation the rights
|
||||||
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
// copies of the Software, and to permit persons to whom the Software is
|
||||||
|
// furnished to do so, subject to the following conditions:
|
||||||
|
//
|
||||||
|
// The above copyright notice and this permission notice shall be included in
|
||||||
|
// all copies or substantial portions of the Software.
|
||||||
|
//
|
||||||
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||||
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||||
|
// THE SOFTWARE.
|
||||||
|
using System;
|
||||||
|
using System.Collections.Generic;
|
||||||
|
using System.Runtime.InteropServices;
|
||||||
|
using System.Text;
|
||||||
|
using System.Xml;
|
||||||
|
|
||||||
|
using MonoMac.Foundation;
|
||||||
|
using MonoMac.AppKit;
|
||||||
|
using MonoMac.ObjCRuntime;
|
||||||
|
|
||||||
|
using Xwt;
|
||||||
|
using Xwt.Backends;
|
||||||
|
|
||||||
|
namespace Xwt.Mac
|
||||||
|
{
|
||||||
|
public class RichTextViewBackend : ViewBackend <NSTextView, IRichTextViewEventSink>, IRichTextViewBackend
|
||||||
|
{
|
||||||
|
public RichTextViewBackend ()
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
public override void Initialize ()
|
||||||
|
{
|
||||||
|
base.Initialize ();
|
||||||
|
ViewObject = new MacTextView (EventSink, ApplicationContext);
|
||||||
|
}
|
||||||
|
|
||||||
|
public IRichTextBuffer CreateBuffer ()
|
||||||
|
{
|
||||||
|
return new MacRichTextBuffer ();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void SetBuffer (IRichTextBuffer buffer)
|
||||||
|
{
|
||||||
|
var macBuffer = buffer as MacRichTextBuffer;
|
||||||
|
if (macBuffer == null)
|
||||||
|
throw new ArgumentException ("Passed buffer is of incorrect type", "buffer");
|
||||||
|
|
||||||
|
var tview = ViewObject as MacTextView;
|
||||||
|
if (tview == null)
|
||||||
|
return;
|
||||||
|
tview.TextStorage.SetString (macBuffer.ToAttributedString ());
|
||||||
|
ResetFittingSize ();
|
||||||
|
}
|
||||||
|
|
||||||
|
public override void EnableEvent (object eventId)
|
||||||
|
{
|
||||||
|
base.EnableEvent (eventId);
|
||||||
|
if (!(eventId is RichTextViewEvent))
|
||||||
|
return;
|
||||||
|
|
||||||
|
var tview = ViewObject as MacTextView;
|
||||||
|
if (tview == null)
|
||||||
|
return;
|
||||||
|
tview.EnableEvent ((RichTextViewEvent)eventId);
|
||||||
|
}
|
||||||
|
|
||||||
|
public override void DisableEvent (object eventId)
|
||||||
|
{
|
||||||
|
base.DisableEvent (eventId);
|
||||||
|
if (!(eventId is RichTextViewEvent))
|
||||||
|
return;
|
||||||
|
|
||||||
|
var tview = ViewObject as MacTextView;
|
||||||
|
if (tview == null)
|
||||||
|
return;
|
||||||
|
tview.DisableEvent ((RichTextViewEvent)eventId);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
class MacTextView : NSTextView, IViewObject
|
||||||
|
{
|
||||||
|
IRichTextViewEventSink eventSink;
|
||||||
|
ApplicationContext context;
|
||||||
|
|
||||||
|
public NSView View {
|
||||||
|
get { return this; }
|
||||||
|
}
|
||||||
|
|
||||||
|
public ViewBackend Backend { get; set; }
|
||||||
|
|
||||||
|
public MacTextView (IntPtr p) : base (p)
|
||||||
|
{
|
||||||
|
CommonInit ();
|
||||||
|
}
|
||||||
|
|
||||||
|
public MacTextView (IRichTextViewEventSink eventSink, ApplicationContext context)
|
||||||
|
{
|
||||||
|
CommonInit ();
|
||||||
|
this.eventSink = eventSink;
|
||||||
|
this.context = context;
|
||||||
|
EnableEvent (RichTextViewEvent.NavigateToUrl);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EnableEvent (RichTextViewEvent ev)
|
||||||
|
{
|
||||||
|
if (ev != RichTextViewEvent.NavigateToUrl)
|
||||||
|
return;
|
||||||
|
LinkClicked = TextLinkClicked;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void DisableEvent (RichTextViewEvent ev)
|
||||||
|
{
|
||||||
|
if (ev != RichTextViewEvent.NavigateToUrl)
|
||||||
|
return;
|
||||||
|
LinkClicked = null;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool TextLinkClicked (NSTextView textView, NSObject link, uint charIndex)
|
||||||
|
{
|
||||||
|
if (eventSink == null || context == null)
|
||||||
|
return false;
|
||||||
|
|
||||||
|
string linkUrl;
|
||||||
|
|
||||||
|
if (link is NSString)
|
||||||
|
linkUrl = (link as NSString);
|
||||||
|
else if (link is NSUrl)
|
||||||
|
linkUrl = (link as NSUrl).AbsoluteString;
|
||||||
|
else
|
||||||
|
linkUrl = null;
|
||||||
|
|
||||||
|
Uri url = null;
|
||||||
|
if (String.IsNullOrWhiteSpace (linkUrl) || !Uri.TryCreate (linkUrl, UriKind.RelativeOrAbsolute, out url))
|
||||||
|
url = null;
|
||||||
|
|
||||||
|
context.InvokeUserCode (delegate {
|
||||||
|
eventSink.OnNavigateToUrl (url);
|
||||||
|
});
|
||||||
|
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
void CommonInit ()
|
||||||
|
{
|
||||||
|
Editable = false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
class MacRichTextBuffer : IRichTextBuffer
|
||||||
|
{
|
||||||
|
const int FontSize = 16;
|
||||||
|
const string FontFamily = "sans-serif";
|
||||||
|
const int HeaderIncrement = 8;
|
||||||
|
|
||||||
|
static readonly string[] lineSplitChars = new string[] { Environment.NewLine };
|
||||||
|
static readonly IntPtr selInitWithHTMLDocumentAttributes_Handle = Selector.GetHandle ("initWithHTML:documentAttributes:");
|
||||||
|
|
||||||
|
StringBuilder text;
|
||||||
|
XmlWriter xmlWriter;
|
||||||
|
Stack <int> paragraphIndent;
|
||||||
|
|
||||||
|
public MacRichTextBuffer ()
|
||||||
|
{
|
||||||
|
text = new StringBuilder ();
|
||||||
|
xmlWriter = XmlWriter.Create (text, new XmlWriterSettings {
|
||||||
|
OmitXmlDeclaration = true,
|
||||||
|
Encoding = Encoding.UTF8,
|
||||||
|
Indent = true,
|
||||||
|
IndentChars = "\t"
|
||||||
|
});
|
||||||
|
xmlWriter.WriteStartElement ("html");
|
||||||
|
xmlWriter.WriteAttributeString ("style", String.Format ("font-family: {0}; font-size: {1}", FontFamily, FontSize));
|
||||||
|
}
|
||||||
|
|
||||||
|
public NSAttributedString ToAttributedString ()
|
||||||
|
{
|
||||||
|
xmlWriter.WriteEndElement ();
|
||||||
|
xmlWriter.Flush ();
|
||||||
|
if (text == null || text.Length == 0)
|
||||||
|
return new NSAttributedString (String.Empty);
|
||||||
|
|
||||||
|
NSDictionary docAttributes;
|
||||||
|
try {
|
||||||
|
return CreateStringFromHTML (text.ToString (), out docAttributes);
|
||||||
|
} finally {
|
||||||
|
text = null;
|
||||||
|
xmlWriter.Dispose ();
|
||||||
|
xmlWriter = null;
|
||||||
|
docAttributes = null;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
NSAttributedString CreateStringFromHTML (string html, out NSDictionary docAttributes)
|
||||||
|
{
|
||||||
|
var data = NSData.FromString (html);
|
||||||
|
IntPtr docAttributesPtr = Marshal.AllocHGlobal (4);
|
||||||
|
Marshal.WriteInt32 (docAttributesPtr, 0);
|
||||||
|
|
||||||
|
var attrString = new NSAttributedString ();
|
||||||
|
attrString.Handle = Messaging.IntPtr_objc_msgSend_IntPtr_IntPtr (attrString.Handle, selInitWithHTMLDocumentAttributes_Handle, data.Handle, docAttributesPtr);
|
||||||
|
IntPtr docAttributesValue = Marshal.ReadIntPtr (docAttributesPtr);
|
||||||
|
docAttributes = docAttributesValue != IntPtr.Zero ? Runtime.GetNSObject (docAttributesValue) as NSDictionary : null;
|
||||||
|
Marshal.FreeHGlobal (docAttributesPtr);
|
||||||
|
|
||||||
|
return attrString;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitText (string text, RichTextInlineStyle style)
|
||||||
|
{
|
||||||
|
if (String.IsNullOrEmpty (text))
|
||||||
|
return;
|
||||||
|
|
||||||
|
bool haveStyle = true;
|
||||||
|
switch (style) {
|
||||||
|
case RichTextInlineStyle.Bold:
|
||||||
|
xmlWriter.WriteStartElement ("strong");
|
||||||
|
break;
|
||||||
|
|
||||||
|
case RichTextInlineStyle.Italic:
|
||||||
|
xmlWriter.WriteStartElement ("em");
|
||||||
|
break;
|
||||||
|
|
||||||
|
case RichTextInlineStyle.Monospace:
|
||||||
|
xmlWriter.WriteStartElement ("tt");
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
haveStyle = false;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool first = true;
|
||||||
|
foreach (string line in text.Split (lineSplitChars, StringSplitOptions.None)) {
|
||||||
|
if (!first) {
|
||||||
|
xmlWriter.WriteStartElement ("br");
|
||||||
|
xmlWriter.WriteEndElement ();
|
||||||
|
} else
|
||||||
|
first = false;
|
||||||
|
xmlWriter.WriteString (line);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (haveStyle)
|
||||||
|
xmlWriter.WriteEndElement ();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitStartHeader (int level)
|
||||||
|
{
|
||||||
|
if (level < 1)
|
||||||
|
level = 1;
|
||||||
|
if (level > 6)
|
||||||
|
level = 6;
|
||||||
|
xmlWriter.WriteStartElement ("h" + level);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitEndHeader ()
|
||||||
|
{
|
||||||
|
xmlWriter.WriteEndElement ();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitStartParagraph (int indentLevel)
|
||||||
|
{
|
||||||
|
if (paragraphIndent == null)
|
||||||
|
paragraphIndent = new Stack<int> ();
|
||||||
|
paragraphIndent.Push (indentLevel);
|
||||||
|
|
||||||
|
// FIXME: perhaps use CSS indent?
|
||||||
|
for (int i = 0; i < indentLevel; i++)
|
||||||
|
xmlWriter.WriteStartElement ("blockindent");
|
||||||
|
xmlWriter.WriteStartElement ("p");
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitEndParagraph ()
|
||||||
|
{
|
||||||
|
xmlWriter.WriteEndElement (); // </p>
|
||||||
|
|
||||||
|
int indentLevel;
|
||||||
|
if (paragraphIndent != null && paragraphIndent.Count > 0)
|
||||||
|
indentLevel = paragraphIndent.Pop ();
|
||||||
|
else
|
||||||
|
indentLevel = 0;
|
||||||
|
|
||||||
|
for (int i = 0; i < indentLevel; i++)
|
||||||
|
xmlWriter.WriteEndElement (); // </blockindent>
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitOpenList ()
|
||||||
|
{
|
||||||
|
xmlWriter.WriteStartElement ("ul");
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitOpenBullet ()
|
||||||
|
{
|
||||||
|
xmlWriter.WriteStartElement ("li");
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitCloseBullet ()
|
||||||
|
{
|
||||||
|
xmlWriter.WriteEndElement ();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitCloseList ()
|
||||||
|
{
|
||||||
|
xmlWriter.WriteEndElement ();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitStartLink (string href, string title)
|
||||||
|
{
|
||||||
|
xmlWriter.WriteStartElement ("a");
|
||||||
|
xmlWriter.WriteAttributeString ("href", href);
|
||||||
|
|
||||||
|
// FIXME: it appears NSTextView ignores 'title' when it's told to display
|
||||||
|
// link tooltips - it will use the URL instead. See if there's a way to make
|
||||||
|
// it show the actual title
|
||||||
|
xmlWriter.WriteAttributeString ("title", title);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitEndLink ()
|
||||||
|
{
|
||||||
|
xmlWriter.WriteEndElement ();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitCodeBlock (string code)
|
||||||
|
{
|
||||||
|
xmlWriter.WriteStartElement ("pre");
|
||||||
|
xmlWriter.WriteString (code);
|
||||||
|
xmlWriter.WriteEndElement ();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void EmitHorizontalRuler ()
|
||||||
|
{
|
||||||
|
xmlWriter.WriteStartElement ("hr");
|
||||||
|
xmlWriter.WriteEndElement ();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
Загрузка…
Ссылка в новой задаче