1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 | 1× 1× 36× 1× 7× 2× 6× 6× 5× 5× 1× 4× 1× 3× 4× 4× 7× 7× 7× 7× 7× 7× 1× 1× 3× 3× 1× 1× 2× 2× 7× 2× 7× 1× 1× 25× 1× 24× 1× 3× 3× 2× 1× 2× 1× 4× 1× 3× 1× 2× 1× 1× 1× 3× 1× 10× 3× | import { forEach, isArray } from 'min-dash'; var NOT_REGISTERED_ERROR = 'is not a registered action', IS_REGISTERED_ERROR = 'is already registered'; /** * An interface that provides access to modeling actions by decoupling * the one who requests the action to be triggered and the trigger itself. * * It's possible to add new actions by registering them with ´registerAction´ and likewise * unregister existing ones with ´unregisterAction´. * */ export default function EditorActions( eventBus, commandStack, modeling, selection, zoomScroll, copyPaste, canvas, rules, mouseTracking) { this._actions = { undo: function() { commandStack.undo(); }, redo: function() { commandStack.redo(); }, copy: function() { var selectedElements = selection.get(); copyPaste.copy(selectedElements); }, paste: function() { var context = mouseTracking.getHoverContext(); copyPaste.paste(context); }, stepZoom: function(opts) { zoomScroll.stepZoom(opts.value); }, zoom: function(opts) { canvas.zoom(opts.value); }, removeSelection: function() { var selectedElements = selection.get(); if (selectedElements.length) { var allowed = rules.allowed('elements.delete', { elements: selectedElements }), removableElements; if (allowed === false) { return; } else if (isArray(allowed)) { removableElements = allowed; } else { removableElements = selectedElements; } Eif (removableElements.length) { modeling.removeElements(removableElements.slice()); } } }, moveCanvas: function(opts) { var dx = 0, dy = 0, invertY = opts.invertY, speed = opts.speed; var actualSpeed = speed / Math.min(Math.sqrt(canvas.viewbox().scale), 1); switch (opts.direction) { case 'left': // Left dx = actualSpeed; break; case 'up': // Up dy = actualSpeed; break; case 'right': // Right dx = -actualSpeed; break; case 'down': // Down dy = -actualSpeed; break; } if (dy && invertY) { dy = -dy; } canvas.scroll({ dx: dx, dy: dy }); } }; } EditorActions.$inject = [ 'eventBus', 'commandStack', 'modeling', 'selection', 'zoomScroll', 'copyPaste', 'canvas', 'rules', 'mouseTracking' ]; /** * Triggers a registered action * * @param {String} action * @param {Object} opts * * @return {Unknown} Returns what the registered listener returns */ EditorActions.prototype.trigger = function(action, opts) { if (!this._actions[action]) { throw error(action, NOT_REGISTERED_ERROR); } return this._actions[action](opts); }; /** * Registers a collections of actions. * The key of the object will be the name of the action. * * @example * ´´´ * var actions = { * spaceTool: function() { * spaceTool.activateSelection(); * }, * lassoTool: function() { * lassoTool.activateSelection(); * } * ]; * * editorActions.register(actions); * * editorActions.isRegistered('spaceTool'); // true * ´´´ * * @param {Object} actions */ EditorActions.prototype.register = function(actions, listener) { var self = this; if (typeof actions === 'string') { return this._registerAction(actions, listener); } forEach(actions, function(listener, action) { self._registerAction(action, listener); }); }; /** * Registers a listener to an action key * * @param {String} action * @param {Function} listener */ EditorActions.prototype._registerAction = function(action, listener) { if (this.isRegistered(action)) { throw error(action, IS_REGISTERED_ERROR); } this._actions[action] = listener; }; /** * Unregister an existing action * * @param {String} action */ EditorActions.prototype.unregister = function(action) { if (!this.isRegistered(action)) { throw error(action, NOT_REGISTERED_ERROR); } this._actions[action] = undefined; }; /** * Returns the number of actions that are currently registered * * @return {Number} */ EditorActions.prototype.length = function() { return Object.keys(this._actions).length; }; /** * Checks wether the given action is registered * * @param {String} action * * @return {Boolean} */ EditorActions.prototype.isRegistered = function(action) { return !!this._actions[action]; }; function error(action, message) { return new Error(action + ' ' + message); } |