polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-annotation-actions-js-api.js - gerrit - Git at Google

 /**
  * @license
  * Copyright (C) 2017 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 (function(window) {
   'use strict';

   function GrAnnotationActionsInterface(plugin) {
     this.plugin = plugin;
     // Return this instance when there is an annotatediff event.
     plugin.on('annotatediff', this);

     // Collect all annotation layers instantiated by getLayer. Will be used when
     // notifying their listeners in the notify function.
     this._annotationLayers = [];

     this._coverageProvider = null;

     // Default impl is a no-op.
     this._addLayerFunc = annotationActionsContext => {};
   }

   /**
    * Register a function to call to apply annotations. Plugins should use
    * GrAnnotationActionsContext.annotateRange and
    * GrAnnotationActionsContext.annotateLineNumber to apply a CSS class to the
    * line content or the line number.
    * @param {function(GrAnnotationActionsContext)} addLayerFunc The function
    *     that will be called when the AnnotationLayer is ready to annotate.
    */
   GrAnnotationActionsInterface.prototype.addLayer = function(addLayerFunc) {
     this._addLayerFunc = addLayerFunc;
     return this;
   };

   /**
    * The specified function will be called with a notify function for the plugin
    * to call when it has all required data for annotation. Optional.
    * @param {function(function(String, Number, Number, String))} notifyFunc See
    *     doc of the notify function below to see what it does.
    */
   GrAnnotationActionsInterface.prototype.addNotifier = function(notifyFunc) {
     // Register the notify function with the plugin's function.
     notifyFunc(this.notify.bind(this));
     return this;
   };

   /**
    * The specified function will be called when a gr-diff component is built,
    * and feeds the returned coverage data into the diff. Optional.
    *
    * Be sure to call this only once and only from one plugin. Multiple coverage
    * providers are not supported. A second call will just overwrite the
    * provider of the first call.
    *
    * TODO(brohlfs): Replace Array<Object> type by Array<Gerrit.CoverageRange>.
    *
    * @param {function(changeNum, path, basePatchNum, patchNum):
    * !Promise<!Array<Object>>} coverageProvider
    * @return {GrAnnotationActionsInterface}
    */
   GrAnnotationActionsInterface.prototype.setCoverageProvider = function(
       coverageProvider) {
     if (this._coverageProvider) {
       console.warn('Overwriting an existing coverage provider.');
     }
     this._coverageProvider = coverageProvider;
     return this;
   };

   /**
    * Used by Gerrit to look up the coverage provider. Not intended to be called
    * by plugins.
    */
   GrAnnotationActionsInterface.prototype.getCoverageProvider = function() {
     return this._coverageProvider;
   };

   /**
    * Returns a checkbox HTMLElement that can be used to toggle annotations
    * on/off. The checkbox will be initially disabled. Plugins should enable it
    * when data is ready and should add a click handler to toggle CSS on/off.
    *
    * Note1: Calling this method from multiple plugins will only work for the
    *        1st call. It will print an error message for all subsequent calls
    *        and will not invoke their onAttached functions.
    * Note2: This method will be deprecated and eventually removed when
    *        https://bugs.chromium.org/p/gerrit/issues/detail?id=8077 is
    *        implemented.
    *
    * @param {String} checkboxLabel Will be used as the label for the checkbox.
    *     Optional. "Enable" is used if this is not specified.
    * @param {function(HTMLElement)} onAttached The function that will be called
    *     when the checkbox is attached to the page.
    */
   GrAnnotationActionsInterface.prototype.enableToggleCheckbox = function(
       checkboxLabel, onAttached) {
     this.plugin.hook('annotation-toggler').onAttached(element => {
       if (!element.content.hidden) {
         console.error(
             element.content.id + ' is already enabled. Cannot re-enable.');
         return;
       }
       element.content.removeAttribute('hidden');

       const label = element.content.querySelector('#annotation-label');
       if (checkboxLabel) {
         label.textContent = checkboxLabel;
       } else {
         label.textContent = 'Enable';
       }
       const checkbox = element.content.querySelector('#annotation-checkbox');
       onAttached(checkbox);
     });
     return this;
   };

   /**
    * The notify function will call the listeners of all required annotation
    * layers. Intended to be called by the plugin when all required data for
    * annotation is available.
    * @param {String} path The file path whose listeners should be notified.
    * @param {Number} start The line where the update starts.
    * @param {Number} end The line where the update ends.
    * @param {String} side The side of the update ('left' or 'right').
    */
   GrAnnotationActionsInterface.prototype.notify = function(
       path, startRange, endRange, side) {
     for (const annotationLayer of this._annotationLayers) {
       // Notify only the annotation layer that is associated with the specified
       // path.
       if (annotationLayer._path === path) {
         annotationLayer.notifyListeners(startRange, endRange, side);
         break;
       }
     }
   };

   /**
    * Should be called to register annotation layers by the framework. Not
    * intended to be called by plugins.
    * @param {String} path The file path (eg: /COMMIT_MSG').
    * @param {String} changeNum The Gerrit change number.
    * @param {String} patchNum The Gerrit patch number.
    */
   GrAnnotationActionsInterface.prototype.getLayer = function(
       path, changeNum, patchNum) {
     const annotationLayer = new AnnotationLayer(path, changeNum, patchNum,
                                                 this._addLayerFunc);
     this._annotationLayers.push(annotationLayer);
     return annotationLayer;
   };

   /**
    * Used to create an instance of the Annotation Layer interface.
    * @param {String} path The file path (eg: /COMMIT_MSG').
    * @param {String} changeNum The Gerrit change number.
    * @param {String} patchNum The Gerrit patch number.
    * @param {function(GrAnnotationActionsContext)} addLayerFunc The function
    *     that will be called when the AnnotationLayer is ready to annotate.
    */
   function AnnotationLayer(path, changeNum, patchNum, addLayerFunc) {
     this._path = path;
     this._changeNum = changeNum;
     this._patchNum = patchNum;
     this._addLayerFunc = addLayerFunc;

     this._listeners = [];
   }

   /**
    * Register a listener for layer updates.
    * @param {function(Number, Number, String)} fn The update handler function.
    *     Should accept as arguments the line numbers for the start and end of
    *     the update and the side as a string.
    */
   AnnotationLayer.prototype.addListener = function(fn) {
     this._listeners.push(fn);
   };

   /**
    * Layer method to add annotations to a line.
    * @param {HTMLElement} contentEl The DIV.contentText element of the line
    *     content to apply the annotation to using annotateRange.
    * @param {HTMLElement} lineNumberEl The TD element of the line number to
    *     apply the annotation to using annotateLineNumber.
    * @param {GrDiffLine} line The line object.
    */
   AnnotationLayer.prototype.annotate = function(contentEl, lineNumberEl, line) {
     const annotationActionsContext = new GrAnnotationActionsContext(
         contentEl, lineNumberEl, line, this._path, this._changeNum,
         this._patchNum);
     this._addLayerFunc(annotationActionsContext);
   };

   /**
    * Notify Layer listeners of changes to annotations.
    * @param {Number} start The line where the update starts.
    * @param {Number} end The line where the update ends.
    * @param {String} side The side of the update. ('left' or 'right')
    */
   AnnotationLayer.prototype.notifyListeners = function(
       startRange, endRange, side) {
     for (const listener of this._listeners) {
       listener(startRange, endRange, side);
     }
   };

   window.GrAnnotationActionsInterface = GrAnnotationActionsInterface;
 })(window);
	/**
	* @license
	* Copyright (C) 2017 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	(function(window) {
	'use strict';

	function GrAnnotationActionsInterface(plugin) {
	this.plugin = plugin;
	// Return this instance when there is an annotatediff event.
	plugin.on('annotatediff', this);

	// Collect all annotation layers instantiated by getLayer. Will be used when
	// notifying their listeners in the notify function.
	this._annotationLayers = [];

	this._coverageProvider = null;

	// Default impl is a no-op.
	this._addLayerFunc = annotationActionsContext => {};
	}

	/**
	* Register a function to call to apply annotations. Plugins should use
	* GrAnnotationActionsContext.annotateRange and
	* GrAnnotationActionsContext.annotateLineNumber to apply a CSS class to the
	* line content or the line number.
	* @param {function(GrAnnotationActionsContext)} addLayerFunc The function
	* that will be called when the AnnotationLayer is ready to annotate.
	*/
	GrAnnotationActionsInterface.prototype.addLayer = function(addLayerFunc) {
	this._addLayerFunc = addLayerFunc;
	return this;
	};

	/**
	* The specified function will be called with a notify function for the plugin
	* to call when it has all required data for annotation. Optional.
	* @param {function(function(String, Number, Number, String))} notifyFunc See
	* doc of the notify function below to see what it does.
	*/
	GrAnnotationActionsInterface.prototype.addNotifier = function(notifyFunc) {
	// Register the notify function with the plugin's function.
	notifyFunc(this.notify.bind(this));
	return this;
	};

	/**
	* The specified function will be called when a gr-diff component is built,
	* and feeds the returned coverage data into the diff. Optional.
	*
	* Be sure to call this only once and only from one plugin. Multiple coverage
	* providers are not supported. A second call will just overwrite the
	* provider of the first call.
	*
	* TODO(brohlfs): Replace Array<Object> type by Array<Gerrit.CoverageRange>.
	*
	* @param {function(changeNum, path, basePatchNum, patchNum):
	* !Promise<!Array<Object>>} coverageProvider
	* @return {GrAnnotationActionsInterface}
	*/
	GrAnnotationActionsInterface.prototype.setCoverageProvider = function(
	coverageProvider) {
	if (this._coverageProvider) {
	console.warn('Overwriting an existing coverage provider.');
	}
	this._coverageProvider = coverageProvider;
	return this;
	};

	/**
	* Used by Gerrit to look up the coverage provider. Not intended to be called
	* by plugins.
	*/
	GrAnnotationActionsInterface.prototype.getCoverageProvider = function() {
	return this._coverageProvider;
	};

	/**
	* Returns a checkbox HTMLElement that can be used to toggle annotations
	* on/off. The checkbox will be initially disabled. Plugins should enable it
	* when data is ready and should add a click handler to toggle CSS on/off.
	*
	* Note1: Calling this method from multiple plugins will only work for the
	* 1st call. It will print an error message for all subsequent calls
	* and will not invoke their onAttached functions.
	* Note2: This method will be deprecated and eventually removed when
	* https://bugs.chromium.org/p/gerrit/issues/detail?id=8077 is
	* implemented.
	*
	* @param {String} checkboxLabel Will be used as the label for the checkbox.
	* Optional. "Enable" is used if this is not specified.
	* @param {function(HTMLElement)} onAttached The function that will be called
	* when the checkbox is attached to the page.
	*/
	GrAnnotationActionsInterface.prototype.enableToggleCheckbox = function(
	checkboxLabel, onAttached) {
	this.plugin.hook('annotation-toggler').onAttached(element => {
	if (!element.content.hidden) {
	console.error(
	element.content.id + ' is already enabled. Cannot re-enable.');
	return;
	}
	element.content.removeAttribute('hidden');

	const label = element.content.querySelector('#annotation-label');
	if (checkboxLabel) {
	label.textContent = checkboxLabel;
	} else {
	label.textContent = 'Enable';
	}
	const checkbox = element.content.querySelector('#annotation-checkbox');
	onAttached(checkbox);
	});
	return this;
	};

	/**
	* The notify function will call the listeners of all required annotation
	* layers. Intended to be called by the plugin when all required data for
	* annotation is available.
	* @param {String} path The file path whose listeners should be notified.
	* @param {Number} start The line where the update starts.
	* @param {Number} end The line where the update ends.
	* @param {String} side The side of the update ('left' or 'right').
	*/
	GrAnnotationActionsInterface.prototype.notify = function(
	path, startRange, endRange, side) {
	for (const annotationLayer of this._annotationLayers) {
	// Notify only the annotation layer that is associated with the specified
	// path.
	if (annotationLayer._path === path) {
	annotationLayer.notifyListeners(startRange, endRange, side);
	break;
	}
	}
	};

	/**
	* Should be called to register annotation layers by the framework. Not
	* intended to be called by plugins.
	* @param {String} path The file path (eg: /COMMIT_MSG').
	* @param {String} changeNum The Gerrit change number.
	* @param {String} patchNum The Gerrit patch number.
	*/
	GrAnnotationActionsInterface.prototype.getLayer = function(
	path, changeNum, patchNum) {
	const annotationLayer = new AnnotationLayer(path, changeNum, patchNum,
	this._addLayerFunc);
	this._annotationLayers.push(annotationLayer);
	return annotationLayer;
	};

	/**
	* Used to create an instance of the Annotation Layer interface.
	* @param {String} path The file path (eg: /COMMIT_MSG').
	* @param {String} changeNum The Gerrit change number.
	* @param {String} patchNum The Gerrit patch number.
	* @param {function(GrAnnotationActionsContext)} addLayerFunc The function
	* that will be called when the AnnotationLayer is ready to annotate.
	*/
	function AnnotationLayer(path, changeNum, patchNum, addLayerFunc) {
	this._path = path;
	this._changeNum = changeNum;
	this._patchNum = patchNum;
	this._addLayerFunc = addLayerFunc;

	this._listeners = [];
	}

	/**
	* Register a listener for layer updates.
	* @param {function(Number, Number, String)} fn The update handler function.
	* Should accept as arguments the line numbers for the start and end of
	* the update and the side as a string.
	*/
	AnnotationLayer.prototype.addListener = function(fn) {
	this._listeners.push(fn);
	};

	/**
	* Layer method to add annotations to a line.
	* @param {HTMLElement} contentEl The DIV.contentText element of the line
	* content to apply the annotation to using annotateRange.
	* @param {HTMLElement} lineNumberEl The TD element of the line number to
	* apply the annotation to using annotateLineNumber.
	* @param {GrDiffLine} line The line object.
	*/
	AnnotationLayer.prototype.annotate = function(contentEl, lineNumberEl, line) {
	const annotationActionsContext = new GrAnnotationActionsContext(
	contentEl, lineNumberEl, line, this._path, this._changeNum,
	this._patchNum);
	this._addLayerFunc(annotationActionsContext);
	};

	/**
	* Notify Layer listeners of changes to annotations.
	* @param {Number} start The line where the update starts.
	* @param {Number} end The line where the update ends.
	* @param {String} side The side of the update. ('left' or 'right')
	*/
	AnnotationLayer.prototype.notifyListeners = function(
	startRange, endRange, side) {
	for (const listener of this._listeners) {
	listener(startRange, endRange, side);
	}
	};

	window.GrAnnotationActionsInterface = GrAnnotationActionsInterface;
	})(window);