зеркало из https://github.com/mozilla/gecko-dev.git
130 строки
3.6 KiB
JavaScript
130 строки
3.6 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- /
|
|
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
"use strict";
|
|
|
|
/*
|
|
global addMessageListener
|
|
global removeMessageListener
|
|
global docShell
|
|
global content
|
|
global sendAsyncMsg
|
|
*/
|
|
|
|
function debug(msg) {
|
|
// dump("BrowserElementCopyPaste - " + msg + "\n");
|
|
}
|
|
|
|
debug("loaded");
|
|
|
|
var CopyPasteAssistent = {
|
|
COMMAND_MAP: {
|
|
"cut": "cmd_cut",
|
|
"copy": "cmd_copy",
|
|
"paste": "cmd_paste",
|
|
"selectall": "cmd_selectAll",
|
|
},
|
|
|
|
init() {
|
|
addEventListener("mozcaretstatechanged", this,
|
|
/* useCapture = */ true, /* wantsUntrusted = */ false);
|
|
addMessageListener("browser-element-api:call", this);
|
|
},
|
|
|
|
destroy() {
|
|
removeEventListener("mozcaretstatechanged", this,
|
|
/* useCapture = */ true, /* wantsUntrusted = */ false);
|
|
removeMessageListener("browser-element-api:call", this);
|
|
},
|
|
|
|
handleEvent(event) {
|
|
switch (event.type) {
|
|
case "mozcaretstatechanged":
|
|
this._caretStateChangedHandler(event);
|
|
break;
|
|
}
|
|
},
|
|
|
|
receiveMessage(message) {
|
|
switch (message.name) {
|
|
case "browser-element-api:call":
|
|
this._browserAPIHandler(message);
|
|
break;
|
|
}
|
|
},
|
|
|
|
_browserAPIHandler(e) {
|
|
switch (e.data.msg_name) {
|
|
case "copypaste-do-command":
|
|
if (this._isCommandEnabled(e.data.command)) {
|
|
docShell.doCommand(this.COMMAND_MAP[e.data.command]);
|
|
}
|
|
break;
|
|
}
|
|
},
|
|
|
|
_isCommandEnabled(cmd) {
|
|
let command = this.COMMAND_MAP[cmd];
|
|
if (!command) {
|
|
return false;
|
|
}
|
|
|
|
return docShell.isCommandEnabled(command);
|
|
},
|
|
|
|
_caretStateChangedHandler(e) {
|
|
e.stopPropagation();
|
|
|
|
let boundingClientRect = e.boundingClientRect;
|
|
this._isCommandEnabled("paste");
|
|
let zoomFactor = content.innerWidth == 0 ? 1 : content.screen.width / content.innerWidth;
|
|
|
|
let detail = {
|
|
rect: {
|
|
width: boundingClientRect ? boundingClientRect.width : 0,
|
|
height: boundingClientRect ? boundingClientRect.height : 0,
|
|
top: boundingClientRect ? boundingClientRect.top : 0,
|
|
bottom: boundingClientRect ? boundingClientRect.bottom : 0,
|
|
left: boundingClientRect ? boundingClientRect.left : 0,
|
|
right: boundingClientRect ? boundingClientRect.right : 0,
|
|
},
|
|
commands: {
|
|
canSelectAll: this._isCommandEnabled("selectall"),
|
|
canCut: this._isCommandEnabled("cut"),
|
|
canCopy: this._isCommandEnabled("copy"),
|
|
canPaste: this._isCommandEnabled("paste"),
|
|
},
|
|
zoomFactor,
|
|
reason: e.reason,
|
|
collapsed: e.collapsed,
|
|
caretVisible: e.caretVisible,
|
|
selectionVisible: e.selectionVisible,
|
|
selectionEditable: e.selectionEditable,
|
|
selectedTextContent: e.selectedTextContent,
|
|
};
|
|
|
|
// Get correct geometry information if we have nested iframe.
|
|
let currentWindow = e.target.defaultView;
|
|
while (currentWindow.realFrameElement) {
|
|
let currentRect = currentWindow.realFrameElement.getBoundingClientRect();
|
|
detail.rect.top += currentRect.top;
|
|
detail.rect.bottom += currentRect.top;
|
|
detail.rect.left += currentRect.left;
|
|
detail.rect.right += currentRect.left;
|
|
currentWindow = currentWindow.realFrameElement.ownerGlobal;
|
|
|
|
let targetDocShell = currentWindow.docShell;
|
|
if (targetDocShell.isMozBrowser) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
sendAsyncMsg("caretstatechanged", detail);
|
|
},
|
|
};
|
|
|
|
CopyPasteAssistent.init();
|