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- /* ***** BEGIN LICENSE BLOCK *****
- * Distributed under the BSD license:
- *
- * Copyright (c) 2010, Ajax.org B.V.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of Ajax.org B.V. nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * ***** END LICENSE BLOCK ***** */
- define(function(require, exports, module) {
- "use strict";
- var dom = require("../lib/dom");
- var event = require("../lib/event");
- var useragent = require("../lib/useragent");
- var DRAG_OFFSET = 0; // pixels
- function DefaultHandlers(mouseHandler) {
- mouseHandler.$clickSelection = null;
- var editor = mouseHandler.editor;
- editor.setDefaultHandler("mousedown", this.onMouseDown.bind(mouseHandler));
- editor.setDefaultHandler("dblclick", this.onDoubleClick.bind(mouseHandler));
- editor.setDefaultHandler("tripleclick", this.onTripleClick.bind(mouseHandler));
- editor.setDefaultHandler("quadclick", this.onQuadClick.bind(mouseHandler));
- editor.setDefaultHandler("mousewheel", this.onMouseWheel.bind(mouseHandler));
- editor.setDefaultHandler("touchmove", this.onTouchMove.bind(mouseHandler));
- var exports = ["select", "startSelect", "selectEnd", "selectAllEnd", "selectByWordsEnd",
- "selectByLinesEnd", "dragWait", "dragWaitEnd", "focusWait"];
- exports.forEach(function(x) {
- mouseHandler[x] = this[x];
- }, this);
- mouseHandler.selectByLines = this.extendSelectionBy.bind(mouseHandler, "getLineRange");
- mouseHandler.selectByWords = this.extendSelectionBy.bind(mouseHandler, "getWordRange");
- }
- (function() {
- this.onMouseDown = function(ev) {
- var inSelection = ev.inSelection();
- var pos = ev.getDocumentPosition();
- this.mousedownEvent = ev;
- var editor = this.editor;
- var button = ev.getButton();
- if (button !== 0) {
- var selectionRange = editor.getSelectionRange();
- var selectionEmpty = selectionRange.isEmpty();
- editor.$blockScrolling++;
- if (selectionEmpty || button == 1)
- editor.selection.moveToPosition(pos);
- editor.$blockScrolling--;
- // 2: contextmenu, 1: linux paste
- if (button == 2) {
- editor.textInput.onContextMenu(ev.domEvent);
- if (!useragent.isMozilla)
- ev.preventDefault();
- }
- // stopping event here breaks contextmenu on ff mac
- // not stopping breaks it on chrome mac
- return;
- }
- this.mousedownEvent.time = Date.now();
- // if this click caused the editor to be focused should not clear the
- // selection
- if (inSelection && !editor.isFocused()) {
- editor.focus();
- if (this.$focusTimout && !this.$clickSelection && !editor.inMultiSelectMode) {
- this.setState("focusWait");
- this.captureMouse(ev);
- return;
- }
- }
- this.captureMouse(ev);
- this.startSelect(pos, ev.domEvent._clicks > 1);
- return ev.preventDefault();
- };
- this.startSelect = function(pos, waitForClickSelection) {
- pos = pos || this.editor.renderer.screenToTextCoordinates(this.x, this.y);
- var editor = this.editor;
- // allow double/triple click handlers to change selection
- editor.$blockScrolling++;
- if (this.mousedownEvent.getShiftKey())
- editor.selection.selectToPosition(pos);
- else if (!waitForClickSelection)
- editor.selection.moveToPosition(pos);
- if (!waitForClickSelection)
- this.select();
- if (editor.renderer.scroller.setCapture) {
- editor.renderer.scroller.setCapture();
- }
- editor.setStyle("ace_selecting");
- this.setState("select");
- editor.$blockScrolling--;
- };
- this.select = function() {
- var anchor, editor = this.editor;
- var cursor = editor.renderer.screenToTextCoordinates(this.x, this.y);
- editor.$blockScrolling++;
- if (this.$clickSelection) {
- var cmp = this.$clickSelection.comparePoint(cursor);
- if (cmp == -1) {
- anchor = this.$clickSelection.end;
- } else if (cmp == 1) {
- anchor = this.$clickSelection.start;
- } else {
- var orientedRange = calcRangeOrientation(this.$clickSelection, cursor);
- cursor = orientedRange.cursor;
- anchor = orientedRange.anchor;
- }
- editor.selection.setSelectionAnchor(anchor.row, anchor.column);
- }
- editor.selection.selectToPosition(cursor);
- editor.$blockScrolling--;
- editor.renderer.scrollCursorIntoView();
- };
- this.extendSelectionBy = function(unitName) {
- var anchor, editor = this.editor;
- var cursor = editor.renderer.screenToTextCoordinates(this.x, this.y);
- var range = editor.selection[unitName](cursor.row, cursor.column);
- editor.$blockScrolling++;
- if (this.$clickSelection) {
- var cmpStart = this.$clickSelection.comparePoint(range.start);
- var cmpEnd = this.$clickSelection.comparePoint(range.end);
- if (cmpStart == -1 && cmpEnd <= 0) {
- anchor = this.$clickSelection.end;
- if (range.end.row != cursor.row || range.end.column != cursor.column)
- cursor = range.start;
- } else if (cmpEnd == 1 && cmpStart >= 0) {
- anchor = this.$clickSelection.start;
- if (range.start.row != cursor.row || range.start.column != cursor.column)
- cursor = range.end;
- } else if (cmpStart == -1 && cmpEnd == 1) {
- cursor = range.end;
- anchor = range.start;
- } else {
- var orientedRange = calcRangeOrientation(this.$clickSelection, cursor);
- cursor = orientedRange.cursor;
- anchor = orientedRange.anchor;
- }
- editor.selection.setSelectionAnchor(anchor.row, anchor.column);
- }
- editor.selection.selectToPosition(cursor);
- editor.$blockScrolling--;
- editor.renderer.scrollCursorIntoView();
- };
- this.selectEnd =
- this.selectAllEnd =
- this.selectByWordsEnd =
- this.selectByLinesEnd = function() {
- this.$clickSelection = null;
- this.editor.unsetStyle("ace_selecting");
- if (this.editor.renderer.scroller.releaseCapture) {
- this.editor.renderer.scroller.releaseCapture();
- }
- };
- this.focusWait = function() {
- var distance = calcDistance(this.mousedownEvent.x, this.mousedownEvent.y, this.x, this.y);
- var time = Date.now();
- if (distance > DRAG_OFFSET || time - this.mousedownEvent.time > this.$focusTimout)
- this.startSelect(this.mousedownEvent.getDocumentPosition());
- };
- this.onDoubleClick = function(ev) {
- var pos = ev.getDocumentPosition();
- var editor = this.editor;
- var session = editor.session;
- var range = session.getBracketRange(pos);
- if (range) {
- if (range.isEmpty()) {
- range.start.column--;
- range.end.column++;
- }
- this.setState("select");
- } else {
- range = editor.selection.getWordRange(pos.row, pos.column);
- this.setState("selectByWords");
- }
- this.$clickSelection = range;
- this.select();
- };
- this.onTripleClick = function(ev) {
- var pos = ev.getDocumentPosition();
- var editor = this.editor;
- this.setState("selectByLines");
- var range = editor.getSelectionRange();
- if (range.isMultiLine() && range.contains(pos.row, pos.column)) {
- this.$clickSelection = editor.selection.getLineRange(range.start.row);
- this.$clickSelection.end = editor.selection.getLineRange(range.end.row).end;
- } else {
- this.$clickSelection = editor.selection.getLineRange(pos.row);
- }
- this.select();
- };
- this.onQuadClick = function(ev) {
- var editor = this.editor;
- editor.selectAll();
- this.$clickSelection = editor.getSelectionRange();
- this.setState("selectAll");
- };
- this.onMouseWheel = function(ev) {
- if (ev.getAccelKey())
- return;
- //shift wheel to horiz scroll
- if (ev.getShiftKey() && ev.wheelY && !ev.wheelX) {
- ev.wheelX = ev.wheelY;
- ev.wheelY = 0;
- }
- var t = ev.domEvent.timeStamp;
- var dt = t - (this.$lastScrollTime||0);
-
- var editor = this.editor;
- var isScrolable = editor.renderer.isScrollableBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
- if (isScrolable || dt < 200) {
- this.$lastScrollTime = t;
- editor.renderer.scrollBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
- return ev.stop();
- }
- };
-
- this.onTouchMove = function (ev) {
- var t = ev.domEvent.timeStamp;
- var dt = t - (this.$lastScrollTime || 0);
- var editor = this.editor;
- var isScrolable = editor.renderer.isScrollableBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
- if (isScrolable || dt < 200) {
- this.$lastScrollTime = t;
- editor.renderer.scrollBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
- return ev.stop();
- }
- };
- }).call(DefaultHandlers.prototype);
- exports.DefaultHandlers = DefaultHandlers;
- function calcDistance(ax, ay, bx, by) {
- return Math.sqrt(Math.pow(bx - ax, 2) + Math.pow(by - ay, 2));
- }
- function calcRangeOrientation(range, cursor) {
- if (range.start.row == range.end.row)
- var cmp = 2 * cursor.column - range.start.column - range.end.column;
- else if (range.start.row == range.end.row - 1 && !range.start.column && !range.end.column)
- var cmp = cursor.column - 4;
- else
- var cmp = 2 * cursor.row - range.start.row - range.end.row;
- if (cmp < 0)
- return {cursor: range.start, anchor: range.end};
- else
- return {cursor: range.end, anchor: range.start};
- }
- });
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