Scanning input generalization (#789)

* Add inputs to options.scanning

* Update CSS for mouse buttons

* Update list counters

* Set up HTML/CSS

* Add input controller

* Use new inputs

* Include mouse buttons

* Update how button inputs are detected

* Add index/empty fields to the input details object

* Update none check for scanning modifier

* Remove old settings

* Remove unused global

5 files changed, 203 insertions, 21 deletions

diff --git a/ext/bg/js/options.js b/ext/bg/js/options.js
index 398fb95c..ab32bb11 100644
--- a/ext/bg/js/options.js
+++ b/ext/bg/js/options.js
@@ -474,6 +474,7 @@ class OptionsUtil {
         //  Added usePopupWindow.
         //  Updated handlebars templates to include "clipboard-image" definition.
         //  Added hideDelay.
+        //  Added inputs to profileOptions.scanning.
         for (const {conditionGroups} of options.profiles) {
             for (const {conditions} of conditionGroups) {
                 for (const condition of conditions) {
@@ -489,6 +490,24 @@ class OptionsUtil {
         for (const {options: profileOptions} of options.profiles) {
             profileOptions.general.usePopupWindow = false;
             profileOptions.scanning.hideDelay = 0;
+
+            const {modifier, middleMouse} = profileOptions.scanning;
+            const scanningInputs = [];
+            switch (modifier) {
+                case 'alt':
+                case 'ctrl':
+                case 'shift':
+                case 'meta':
+                    scanningInputs.push(modifier);
+                    break;
+                case 'none':
+                    scanningInputs.push('');
+                    break;
+            }
+            if (middleMouse) {
+                scanningInputs.push('mouse2');
+            }
+            profileOptions.scanning.inputs = scanningInputs;
         }
         await this._addFieldTemplatesToOptions(options, '/bg/data/anki-field-templates-upgrade-v4.handlebars');
         return options;
diff --git a/ext/bg/js/settings/keyboard-mouse-input-field.js b/ext/bg/js/settings/keyboard-mouse-input-field.js
index b1530c1b..4ba0d3ed 100644
--- a/ext/bg/js/settings/keyboard-mouse-input-field.js
+++ b/ext/bg/js/settings/keyboard-mouse-input-field.js
@@ -172,7 +172,7 @@ class KeyboardMouseInputField extends EventDispatcher {
 
     _onMouseButtonMouseDown(e) {
         e.preventDefault();
-        this._addInputs([`mouse${e.button}`]);
+        this._addInputs(DocumentUtil.getActiveButtons(e));
     }
 
     _onMouseButtonMouseUp(e) {
diff --git a/ext/bg/js/settings/main.js b/ext/bg/js/settings/main.js
index 7fa8e502..4932586b 100644
--- a/ext/bg/js/settings/main.js
+++ b/ext/bg/js/settings/main.js
@@ -22,10 +22,10 @@
  * ClipboardPopupsController
  * DictionaryController
  * DictionaryImportController
- * DocumentUtil
  * GenericSettingController
  * PopupPreviewController
  * ProfileController
+ * ScanInputsController
  * SettingsBackup
  * SettingsController
  * StorageController
@@ -40,23 +40,6 @@ function showExtensionInformation() {
     node.textContent = `${manifest.name} v${manifest.version}`;
 }
 
-async function settingsPopulateModifierKeys() {
-    const scanModifierKeySelect = document.querySelector('#scan-modifier-key');
-    scanModifierKeySelect.textContent = '';
-
-    const {platform: {os}} = await api.getEnvironmentInfo();
-    const modifierKeys = [
-        ['none', 'None'],
-        ...DocumentUtil.getModifierKeys(os)
-    ];
-    for (const [value, name] of modifierKeys) {
-        const option = document.createElement('option');
-        option.value = value;
-        option.textContent = name;
-        scanModifierKeySelect.appendChild(option);
-    }
-}
-
 async function setupEnvironmentInfo() {
     const {browser, platform} = await api.getEnvironmentInfo();
     document.documentElement.dataset.browser = browser;
@@ -71,7 +54,6 @@ async function setupEnvironmentInfo() {
 
         setupEnvironmentInfo();
         showExtensionInformation();
-        settingsPopulateModifierKeys();
 
         const optionsFull = await api.optionsGetFull();
 
@@ -111,6 +93,9 @@ async function setupEnvironmentInfo() {
         const settingsBackup = new SettingsBackup(settingsController);
         settingsBackup.prepare();
 
+        const scanInputsController = new ScanInputsController(settingsController);
+        scanInputsController.prepare();
+
         yomichan.ready();
     } catch (e) {
         yomichan.logError(e);
diff --git a/ext/bg/js/settings/profile-conditions-ui.js b/ext/bg/js/settings/profile-conditions-ui.js
index d88f932b..419c35b3 100644
--- a/ext/bg/js/settings/profile-conditions-ui.js
+++ b/ext/bg/js/settings/profile-conditions-ui.js
@@ -441,7 +441,7 @@ class ProfileConditionUI {
         this._operatorOptionContainer = this._operatorInput.querySelector('optgroup');
         this._valueInput = this._node.querySelector('.condition-input-inner');
         this._removeButton = this._node.querySelector('.condition-remove');
-        this._mouseButton = this._node.querySelector('.condition-mouse-button');
+        this._mouseButton = this._node.querySelector('.mouse-button');
 
         const operatorDetails = this._getOperatorDetails(type, operator);
         this._updateTypes(type);
diff --git a/ext/bg/js/settings/scan-inputs-controller.js b/ext/bg/js/settings/scan-inputs-controller.js
new file mode 100644
index 00000000..3b3945ff
--- /dev/null
+++ b/ext/bg/js/settings/scan-inputs-controller.js
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2020  Yomichan Authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/* global
+ * KeyboardMouseInputField
+ * api
+ */
+
+class ScanInputsController {
+    constructor(settingsController) {
+        this._settingsController = settingsController;
+        this._os = null;
+        this._container = null;
+        this._addButton = null;
+        this._entries = [];
+    }
+
+    async prepare() {
+        const {platform: {os}} = await api.getEnvironmentInfo();
+        this._os = os;
+
+        this._container = document.querySelector('#scan-input-list');
+        this._addButton = document.querySelector('#scan-input-add');
+
+        this._addButton.addEventListener('click', this._onAddButtonClick.bind(this), false);
+        this._settingsController.on('optionsChanged', this._onOptionsChanged.bind(this));
+
+        const options = await this._settingsController.getOptions();
+        this._onOptionsChanged({options});
+    }
+
+    removeInput(index) {
+        if (index < 0 || index >= this._entries.length) { return false; }
+        const input = this._entries[index];
+        input.cleanup();
+        this._entries.splice(index, 1);
+        for (let i = index, ii = this._entries.length; i < ii; ++i) {
+            this._entries[i].index = i;
+        }
+        this._settingsController.modifyProfileSettings([{
+            action: 'splice',
+            path: 'scanning.inputs',
+            start: index,
+            deleteCount: 1,
+            items: []
+        }]);
+    }
+
+    setProperty(index, property, value) {
+        const path = `scanning.inputs[${index}].${property}`;
+        this._settingsController.setProfileSetting(path, value);
+    }
+
+    // Private
+
+    _onOptionsChanged({options}) {
+        const {inputs} = options.scanning;
+
+        for (let i = this._entries.length - 1; i >= 0; --i) {
+            this._entries[i].cleanup();
+        }
+        this._entries.length = 0;
+
+        for (let i = 0, ii = inputs.length; i < ii; ++i) {
+            const {include, exclude} = inputs[i];
+            this._addOption(i, include, exclude);
+        }
+    }
+
+    _onAddButtonClick(e) {
+        e.preventDefault();
+
+        const index = this._entries.length;
+        const include = '';
+        const exclude = '';
+        this._addOption(index, include, exclude);
+        this._settingsController.modifyProfileSettings([{
+            action: 'splice',
+            path: 'scanning.inputs',
+            start: index,
+            deleteCount: 0,
+            items: [{include, exclude}]
+        }]);
+    }
+
+    _addOption(index, include, exclude) {
+        const field = new ScanInputField(this, index, this._os);
+        this._entries.push(field);
+        field.prepare(this._container, include, exclude);
+    }
+}
+
+class ScanInputField {
+    constructor(parent, index, os) {
+        this._parent = parent;
+        this._index = index;
+        this._os = os;
+        this._node = null;
+        this._includeInputField = null;
+        this._excludeInputField = null;
+        this._eventListeners = new EventListenerCollection();
+    }
+
+    get index() {
+        return this._index;
+    }
+
+    set index(value) {
+        this._index = value;
+    }
+
+    prepare(container, include, exclude) {
+        const node = this._instantiateTemplate('#scan-input-template');
+        const includeInputNode = node.querySelector('.scan-input-include .scan-input-field');
+        const includeMouseButton = node.querySelector('.scan-input-include .mouse-button');
+        const excludeInputNode = node.querySelector('.scan-input-exclude .scan-input-field');
+        const excludeMouseButton = node.querySelector('.scan-input-exclude .mouse-button');
+        const removeButton = node.querySelector('.scan-input-remove');
+
+        this._node = node;
+        container.appendChild(node);
+
+        this._includeInputField = new KeyboardMouseInputField(includeInputNode, includeMouseButton, this._os);
+        this._excludeInputField = new KeyboardMouseInputField(excludeInputNode, excludeMouseButton, this._os);
+        this._includeInputField.prepare(include, 'modifierInputs');
+        this._excludeInputField.prepare(exclude, 'modifierInputs');
+
+        this._eventListeners.on(this._includeInputField, 'change', this._onIncludeValueChange.bind(this));
+        this._eventListeners.on(this._excludeInputField, 'change', this._onExcludeValueChange.bind(this));
+        this._eventListeners.addEventListener(removeButton, 'click', this._onRemoveClick.bind(this));
+    }
+
+    cleanup() {
+        this._eventListeners.removeAllEventListeners();
+        if (this._includeInputField !== null) {
+            this._includeInputField.cleanup();
+            this._includeInputField = null;
+        }
+        if (this._node !== null) {
+            const parent = this._node.parentNode;
+            if (parent !== null) { parent.removeChild(this._node); }
+            this._node = null;
+        }
+    }
+
+    _onIncludeValueChange({value}) {
+        this._parent.setProperty(this._index, 'include', value);
+    }
+
+    _onExcludeValueChange({value}) {
+        this._parent.setProperty(this._index, 'exclude', value);
+    }
+
+    _onRemoveClick(e) {
+        e.preventDefault();
+        this._parent.removeInput(this._index);
+    }
+
+    _instantiateTemplate(templateSelector) {
+        const template = document.querySelector(templateSelector);
+        const content = document.importNode(template.content, true);
+        return content.firstChild;
+    }
+}