/*
 * Copyright (c) 2014 Adobe Systems Incorporated. All rights reserved.
 *  
 * 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.
 * 
 */

define(function (require, exports, module) {
    "use strict";

    var util = require("adapter").util,
        OS = require("adapter").os,
        UI = require("adapter").ps.ui;
        
    var Tool = require("js/models/tool"),
        system = require("js/util/system"),
        nls = require("js/util/nls"),
        EventPolicy = require("js/models/eventpolicy"),
        SuperselectVectorMaskOverlay = require("js/jsx/tools/SuperselectVectorMaskOverlay"),
        KeyboardEventPolicy = EventPolicy.KeyboardEventPolicy,
        PointerEventPolicy = EventPolicy.PointerEventPolicy;

    /**
     * @implements {Tool}
     * @constructor
     */
    var SuperSelectVectorTool = function () {
        Tool.call(this, "superselectVector", nls.localize("strings.TOOLS.NAMES.DIRECT_SELECTION_TOOL"),
            "directSelectTool");
        this.icon = "directSelect";
        this.isMainTool = false;
        this.handleVectorMaskMode = true;

        var escapeKeyPolicy = new KeyboardEventPolicy(UI.policyAction.PROPAGATE_TO_BROWSER,
                OS.eventKind.KEY_DOWN, null, OS.eventKeyCode.ESCAPE),
            enterKeyPolicy = new KeyboardEventPolicy(UI.policyAction.PROPAGATE_TO_BROWSER,
                OS.eventKind.KEY_DOWN, null, OS.eventKeyCode.ENTER),
            backspaceKeyPolicy = new KeyboardEventPolicy(UI.policyAction.PROPAGATE_TO_BROWSER,
                OS.eventKind.KEY_DOWN, null, OS.eventKeyCode.BACKSPACE),
            deleteKeyPolicy = new KeyboardEventPolicy(UI.policyAction.PROPAGATE_TO_BROWSER,
                OS.eventKind.KEY_DOWN, null, OS.eventKeyCode.DELETE),
            arrowUpKeyPolicy = new KeyboardEventPolicy(UI.policyAction.PROPAGATE_BY_FOCUS,
                OS.eventKind.KEY_DOWN, null, OS.eventKeyCode.ARROW_UP),
            arrowRightKeyPolicy = new KeyboardEventPolicy(UI.policyAction.PROPAGATE_BY_FOCUS,
                OS.eventKind.KEY_DOWN, null, OS.eventKeyCode.ARROW_RIGHT),
            arrowDownKeyPolicy = new KeyboardEventPolicy(UI.policyAction.PROPAGATE_BY_FOCUS,
                OS.eventKind.KEY_DOWN, null, OS.eventKeyCode.ARROW_DOWN),
            arrowLeftKeyPolicy = new KeyboardEventPolicy(UI.policyAction.PROPAGATE_BY_FOCUS,
                OS.eventKind.KEY_DOWN, null, OS.eventKeyCode.ARROW_LEFT);
            
        this.keyboardPolicyList = [
            escapeKeyPolicy, // Switch back to newSelect
            enterKeyPolicy, // Switch back to newSelect
            backspaceKeyPolicy, // Delete selected vertices
            deleteKeyPolicy, // Delete selected vertices,
            arrowUpKeyPolicy, // Arrow keys for nudging points
            arrowRightKeyPolicy,
            arrowDownKeyPolicy,
            arrowLeftKeyPolicy
        ];

        var vectorMaskPointerPolicy = new PointerEventPolicy(UI.policyAction.PROPAGATE_BY_ALPHA,
                OS.eventKind.LEFT_MOUSE_DOWN),
            rightPointerPolicy = new PointerEventPolicy(UI.policyAction.PROPAGATE_TO_BROWSER,
                OS.eventKind.RIGHT_MOUSE_DOWN);
            
        if (system.isMac) {
            var controlpointerPolicy = new PointerEventPolicy(UI.policyAction.PROPAGATE_TO_BROWSER,
                    OS.eventKind.LEFT_MOUSE_DOWN, { control: true });
            this.pointerPolicyList = [rightPointerPolicy, controlpointerPolicy, vectorMaskPointerPolicy];
        } else {
            this.pointerPolicyList = [rightPointerPolicy, vectorMaskPointerPolicy];
        }

        this.selectHandler = "tool.superselect.vector.select";
        this.deselectHandler = "tool.superselect.vector.deselect";
    };
    util.inherits(SuperSelectVectorTool, Tool);

    /**
     * Handler for key down events
     * Enter and escape switches back to super select tool
     * 
     * @param  {KeyboardEvent} event
     */
    SuperSelectVectorTool.prototype.onKeyDown = function (event) {
        var flux = this.getFlux(),
            toolStore = flux.store("tool");

        var detail = event.detail;
        if (detail.keyCode === 27) { // Escape
            flux.actions.mask.handleEscapeVectorMask();
        } else if (detail.keyCode === 13) { // Enter
            flux.actions.tools.select(toolStore.getToolByID("newSelect"));
        }
    };
    
    SuperSelectVectorTool.prototype.toolOverlays = [SuperselectVectorMaskOverlay];

    module.exports = SuperSelectVectorTool;
});
