S3.Blog

//------------------------------------------------------------------------------
	/** from firefox-34.0.5.source\mozilla-release\browser\base\content\browser.js:5132
	* Gets the selected text in the active browser. Leading and trailing
	* whitespace is removed, and consecutive whitespace is replaced by a single
	* space. A maximum of 150 characters will be returned, regardless of the value
	* of aCharLen.
	*
	* @param aCharLen
	*        The maximum number of characters to return. -1 - for no limit
	*/
FTU.getBrowserSelection_ = function(aCharLen) {
		// selections of more than 150 characters aren't useful
		const kMaxSelectionLen = 150;
		const charLen = Math.min(aCharLen || kMaxSelectionLen, kMaxSelectionLen);

		//let [element, focusedWindow] = BrowserUtils.getFocusSync(document);
		var  focusedWindow = document.commandDispatcher.focusedWindow;
		var  element = document.commandDispatcher.focusedElement;
		var selection = focusedWindow.getSelection().toString();
		// try getting a selected text in text input.
		if (!selection) {
			var isOnTextInput = function isOnTextInput(elem) {
			// we avoid to return a value if a selection is in password field.
			// ref. bug 565717
			return elem instanceof HTMLTextAreaElement ||
					(elem instanceof HTMLInputElement && elem.mozIsTextField(true));
		};

		if (isOnTextInput(element)) {
			let Ci = Components.interfaces;
			selection = element.QueryInterface(Ci.nsIDOMNSEditableElement)
								.editor.selection.toString();
								}
		}

		if (selection) {
			if (charLen>0 && selection.length > charLen) {
				// only use the first charLen important chars.
				var pattern = new RegExp("^(?:\\s*.){0," + charLen + "}";
				pattern.test(selection);
				selection = RegExp.lastMatch;
			}
			else
				selection = selection.trim().replace(/\s+/g, " ";

			//if (charLen>0 && selection.length > charLen)
			//	selection = selection.substr(0, charLen);
		}
		return selection;
	}

//------------------------------------------------------------------------------

FTU.searchSelected = function() {
	//var focusedWindow = document.commandDispatcher.focusedWindow;
	//var searchStr = focusedWindow.getSelection();
	var searchStr = FTU.getBrowserSelection_(-1);
	searchStr = searchStr.toString();
	searchStr = searchStr.replace( /^\s+/, "" );
	searchStr = searchStr.replace(/(\n|\r|\t)+/g, " ";
	searchStr = searchStr.replace(/\s+$/,"";

	if (! /[^\.]+\.[^\.]+/.test(searchStr)) {
		searchStr = '';
	}
	return searchStr || gContextMenu.linkURL;
}
//------------------------------------------------------------------------------