Add simple scan input UI (#921)

* Add simple scan input UI

* Create helper function

* Add controller for old scanning input UI

* Add refresh functions

* Add abstraction function

* Fix incomplete middle mouse support detection

* Make scanning inputs update eachother

* Fix global declaration order

5 files changed, 276 insertions, 20 deletions

diff --git a/ext/bg/css/settings.css b/ext/bg/css/settings.css
index b755b33b..fbea04c0 100644
--- a/ext/bg/css/settings.css
+++ b/ext/bg/css/settings.css
@@ -23,6 +23,7 @@
 html:root:not([data-options-anki-enable=true]) #anki-general,
 html:root:not([data-options-general-debug-info=true]) .debug,
 html:root:not([data-options-general-show-advanced=true]) .options-advanced,
+html:root[data-options-general-show-advanced=true] .options-non-advanced,
 html:root:not([data-options-general-result-output-mode=merge]) #dictionary-main-group {
     display: none;
 }
diff --git a/ext/bg/js/settings/main.js b/ext/bg/js/settings/main.js
index 3b2ff29d..b7d7879c 100644
--- a/ext/bg/js/settings/main.js
+++ b/ext/bg/js/settings/main.js
@@ -28,6 +28,7 @@
  * PopupPreviewController
  * ProfileController
  * ScanInputsController
+ * ScanInputsSimpleController
  * SettingsController
  * StorageController
  * api
@@ -100,6 +101,9 @@ async function setupEnvironmentInfo() {
         const scanInputsController = new ScanInputsController(settingsController);
         scanInputsController.prepare();
 
+        const simpleScanningInputController = new ScanInputsSimpleController(settingsController);
+        simpleScanningInputController.prepare();
+
         yomichan.ready();
     } catch (e) {
         yomichan.logError(e);
diff --git a/ext/bg/js/settings/scan-inputs-controller.js b/ext/bg/js/settings/scan-inputs-controller.js
index 04469a8d..f4aeb236 100644
--- a/ext/bg/js/settings/scan-inputs-controller.js
+++ b/ext/bg/js/settings/scan-inputs-controller.js
@@ -37,10 +37,10 @@ class ScanInputsController {
         this._addButton = document.querySelector('#scan-input-add');
 
         this._addButton.addEventListener('click', this._onAddButtonClick.bind(this), false);
+        this._settingsController.on('scanInputsChanged', this._onScanInputsChanged.bind(this));
         this._settingsController.on('optionsChanged', this._onOptionsChanged.bind(this));
 
-        const options = await this._settingsController.getOptions();
-        this._onOptionsChanged({options});
+        this.refresh();
     }
 
     removeInput(index) {
@@ -51,13 +51,14 @@ class ScanInputsController {
         for (let i = index, ii = this._entries.length; i < ii; ++i) {
             this._entries[i].index = i;
         }
-        this._settingsController.modifyProfileSettings([{
+        this._modifyProfileSettings([{
             action: 'splice',
             path: 'scanning.inputs',
             start: index,
             deleteCount: 1,
             items: []
         }]);
+        return true;
     }
 
     setProperty(index, property, value) {
@@ -69,8 +70,18 @@ class ScanInputsController {
         return this._settingsController.instantiateTemplate(name);
     }
 
+    async refresh() {
+        const options = await this._settingsController.getOptions();
+        this._onOptionsChanged({options});
+    }
+
     // Private
 
+    _onScanInputsChanged({source}) {
+        if (source === this) { return; }
+        this.refresh();
+    }
+
     _onOptionsChanged({options}) {
         const {inputs} = options.scanning;
 
@@ -92,26 +103,12 @@ class ScanInputsController {
         const include = '';
         const exclude = '';
         this._addOption(index, include, exclude);
-        this._settingsController.modifyProfileSettings([{
+        this._modifyProfileSettings([{
             action: 'splice',
             path: 'scanning.inputs',
             start: index,
             deleteCount: 0,
-            items: [{
-                include,
-                exclude,
-                types: {mouse: true, touch: false, pen: false},
-                options: {
-                    showAdvanced: false,
-                    searchTerms: true,
-                    searchKanji: true,
-                    scanOnTouchMove: true,
-                    scanOnPenHover: true,
-                    scanOnPenPress: true,
-                    scanOnPenRelease: false,
-                    preventTouchScrolling: true
-                }
-            }]
+            items: [ScanInputsController.createDefaultMouseInput(include, exclude)]
         }]);
     }
 
@@ -120,6 +117,29 @@ class ScanInputsController {
         this._entries.push(field);
         field.prepare(this._container, include, exclude);
     }
+
+    async _modifyProfileSettings(targets) {
+        await this._settingsController.modifyProfileSettings(targets);
+        this._settingsController.trigger('scanInputsChanged', {source: this});
+    }
+
+    static createDefaultMouseInput(include, exclude) {
+        return {
+            include,
+            exclude,
+            types: {mouse: true, touch: false, pen: false},
+            options: {
+                showAdvanced: false,
+                searchTerms: true,
+                searchKanji: true,
+                scanOnTouchMove: true,
+                scanOnPenHover: true,
+                scanOnPenPress: true,
+                scanOnPenRelease: false,
+                preventTouchScrolling: true
+            }
+        };
+    }
 }
 
 class ScanInputField {
diff --git a/ext/bg/js/settings/scan-inputs-simple-controller.js b/ext/bg/js/settings/scan-inputs-simple-controller.js
new file mode 100644
index 00000000..636fd102
--- /dev/null
+++ b/ext/bg/js/settings/scan-inputs-simple-controller.js
@@ -0,0 +1,221 @@
+/*
+ * 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
+ * DocumentUtil
+ * ScanInputsController
+ * api
+ */
+
+class ScanInputsSimpleController {
+    constructor(settingsController) {
+        this._settingsController = settingsController;
+        this._middleMouseButtonScan = null;
+        this._mainScanModifierKeyInput = null;
+    }
+
+    async prepare() {
+        this._middleMouseButtonScan = document.querySelector('#middle-mouse-button-scan');
+        this._mainScanModifierKeyInput = document.querySelector('#main-scan-modifier-key');
+
+        const {platform: {os}} = await api.getEnvironmentInfo();
+        this._populateSelect(this._mainScanModifierKeyInput, os);
+
+        const options = await this._settingsController.getOptions();
+
+        this._middleMouseButtonScan.addEventListener('change', this.onMiddleMouseButtonScanChange.bind(this), false);
+        this._mainScanModifierKeyInput.addEventListener('change', this._onMainScanModifierKeyInputChange.bind(this), false);
+
+        this._settingsController.on('scanInputsChanged', this._onScanInputsChanged.bind(this));
+        this._settingsController.on('optionsChanged', this._onOptionsChanged.bind(this));
+        this._onOptionsChanged({options});
+    }
+
+    async refresh() {
+        const options = await this._settingsController.getOptions();
+        this._onOptionsChanged({options});
+    }
+
+    // Private
+
+    _onScanInputsChanged({source}) {
+        if (source === this) { return; }
+        this.refresh();
+    }
+
+    _onOptionsChanged({options}) {
+        const {scanning: {inputs}} = options;
+        const middleMouseSupportedIndex = this._getIndexOfMiddleMouseButtonScanInput(inputs);
+        const mainScanInputIndex = this._getIndexOfMainScanInput(inputs);
+
+        let middleMouseSupported = false;
+        if (middleMouseSupportedIndex >= 0) {
+            const includeValues = this._splitValue(inputs[middleMouseSupportedIndex].include);
+            if (includeValues.includes('mouse2')) {
+                middleMouseSupported = true;
+            }
+        }
+
+        let mainScanInput = 'none';
+        if (mainScanInputIndex >= 0) {
+            const includeValues = this._splitValue(inputs[mainScanInputIndex].include);
+            if (includeValues.length > 0) {
+                mainScanInput = includeValues[0];
+            }
+        }
+
+        this._middleMouseButtonScan.checked = middleMouseSupported;
+        this._mainScanModifierKeyInput.value = mainScanInput;
+    }
+
+    onMiddleMouseButtonScanChange(e) {
+        const middleMouseSupported = e.currentTarget.checked;
+        this._setMiddleMouseSuppported(middleMouseSupported);
+    }
+
+    _onMainScanModifierKeyInputChange(e) {
+        const mainScanKey = e.currentTarget.value;
+        const mainScanInputs = (mainScanKey === 'none' ? [] : [mainScanKey]);
+        this._setMainScanInputs(mainScanInputs);
+    }
+
+    _populateSelect(select, os) {
+        const modifierKeys = [
+            {value: 'none', name: 'None'},
+            ...DocumentUtil.getModifierKeys(os).map(([value, name]) => ({value, name}))
+        ];
+
+        const fragment = document.createDocumentFragment();
+        for (const {value, name} of modifierKeys) {
+            const option = document.createElement('option');
+            option.value = value;
+            option.textContent = name;
+            fragment.appendChild(option);
+        }
+        select.textContent = '';
+        select.appendChild(fragment);
+    }
+
+    _splitValue(value) {
+        return value.split(/[,;\s]+/).map((v) => v.trim().toLowerCase()).filter((v) => v.length > 0);
+    }
+
+    async _setMiddleMouseSuppported(value) {
+        // Find target index
+        const options = await this._settingsController.getOptions();
+        const {scanning: {inputs}} = options;
+        const index = this._getIndexOfMiddleMouseButtonScanInput(inputs);
+
+        if (value) {
+            // Add new
+            if (index >= 0) { return; }
+            let insertionPosition = this._getIndexOfMainScanInput(inputs);
+            insertionPosition = (insertionPosition >= 0 ? insertionPosition + 1 : inputs.length);
+            const input = ScanInputsController.createDefaultMouseInput('mouse2', '');
+            await this._modifyProfileSettings([{
+                action: 'splice',
+                path: 'scanning.inputs',
+                start: insertionPosition,
+                deleteCount: 0,
+                items: [input]
+            }]);
+        } else {
+            // Modify existing
+            if (index < 0) { return; }
+            await this._modifyProfileSettings([{
+                action: 'splice',
+                path: 'scanning.inputs',
+                start: index,
+                deleteCount: 1,
+                items: []
+            }]);
+        }
+    }
+
+    async _setMainScanInputs(value) {
+        value = value.join(', ');
+
+        // Find target index
+        const options = await this._settingsController.getOptions();
+        const {scanning: {inputs}} = options;
+        const index = this._getIndexOfMainScanInput(inputs);
+
+        if (index < 0) {
+            // Add new
+            const input = ScanInputsController.createDefaultMouseInput(value, 'mouse0');
+            await this._modifyProfileSettings([{
+                action: 'splice',
+                path: 'scanning.inputs',
+                start: inputs.length,
+                deleteCount: 0,
+                items: [input]
+            }]);
+        } else {
+            // Modify existing
+            await this._modifyProfileSettings([{
+                action: 'set',
+                path: `scanning.inputs[${index}].include`,
+                value
+            }]);
+        }
+    }
+
+    async _modifyProfileSettings(targets) {
+        await this._settingsController.modifyProfileSettings(targets);
+        this._settingsController.trigger('scanInputsChanged', {source: this});
+    }
+
+    _getIndexOfMainScanInput(inputs) {
+        for (let i = 0, ii = inputs.length; i < ii; ++i) {
+            const {include, exclude, types: {mouse}} = inputs[i];
+            if (!mouse) { continue; }
+            const includeValues = this._splitValue(include);
+            const excludeValues = this._splitValue(exclude);
+            if (
+                (
+                    includeValues.length === 0 ||
+                    (includeValues.length === 1 && !this._isMouseInput(includeValues[0]))
+                ) &&
+                excludeValues.length === 1 &&
+                excludeValues[0] === 'mouse0'
+            ) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    _getIndexOfMiddleMouseButtonScanInput(inputs) {
+        for (let i = 0, ii = inputs.length; i < ii; ++i) {
+            const {include, exclude, types: {mouse}} = inputs[i];
+            if (!mouse) { continue; }
+            const includeValues = this._splitValue(include);
+            const excludeValues = this._splitValue(exclude);
+            if (
+                (includeValues.length === 0 || (includeValues.length === 1 && includeValues.includes('mouse2'))) &&
+                excludeValues.length === 0
+            ) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    _isMouseInput(input) {
+        return /^mouse\d+$/.test(input);
+    }
+}
\ No newline at end of file
diff --git a/ext/bg/settings.html b/ext/bg/settings.html
index d513ab57..6c61059a 100644
--- a/ext/bg/settings.html
+++ b/ext/bg/settings.html
@@ -387,6 +387,10 @@
             <div>
                 <h3>Scanning Options</h3>
 
+                <div class="checkbox options-non-advanced">
+                    <label><input type="checkbox" id="middle-mouse-button-scan"> Middle mouse button scans</label>
+                </div>
+
                 <div class="checkbox">
                     <label><input type="checkbox" id="select-matched-text" data-setting="scanning.selectText"> Select matched text</label>
                 </div>
@@ -443,7 +447,12 @@
                     <input type="number" min="1" step="1" id="scan-length" class="form-control" data-setting="scanning.length">
                 </div>
 
-                <div class="form-group">
+                <div class="form-group options-non-advanced">
+                    <label for="main-scan-modifier-key">Scan modifier key</label>
+                    <select class="form-control" id="main-scan-modifier-key"></select>
+                </div>
+
+                <div class="form-group options-advanced">
                     <label>Scan inputs</label>
                     <div class="scan-input-list" id="scan-input-list"></div>
                     <button class="btn btn-default" id="scan-input-add" title="Add scan input"><span class="glyphicon glyphicon-plus"></span></button>
@@ -1255,6 +1264,7 @@
         <script src="/bg/js/settings/popup-preview-controller.js"></script>
         <script src="/bg/js/settings/profile-controller.js"></script>
         <script src="/bg/js/settings/scan-inputs-controller.js"></script>
+        <script src="/bg/js/settings/scan-inputs-simple-controller.js"></script>
         <script src="/bg/js/settings/settings-controller.js"></script>
         <script src="/bg/js/settings/storage-controller.js"></script>