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path: root/ext/js/display/search-display-controller.js
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-rw-r--r--ext/js/display/search-display-controller.js21
1 files changed, 17 insertions, 4 deletions
diff --git a/ext/js/display/search-display-controller.js b/ext/js/display/search-display-controller.js
index 2b97479e..c929ceaa 100644
--- a/ext/js/display/search-display-controller.js
+++ b/ext/js/display/search-display-controller.js
@@ -28,6 +28,7 @@ class SearchDisplayController {
this._displayAudio = displayAudio;
this._searchPersistentStateController = searchPersistentStateController;
this._searchButton = document.querySelector('#search-button');
+ this._searchBackButton = document.querySelector('#search-back-button');
this._queryInput = document.querySelector('#search-textbox');
this._introElement = document.querySelector('#intro');
this._clipboardMonitorEnableCheckbox = document.querySelector('#clipboard-monitor-enable');
@@ -75,6 +76,7 @@ class SearchDisplayController {
this._display.setHistorySettings({useBrowserHistory: true});
this._searchButton.addEventListener('click', this._onSearch.bind(this), false);
+ this._searchBackButton.addEventListener('click', this._onSearchBackButtonClick.bind(this), false);
this._wanakanaEnableCheckbox.addEventListener('change', this._onWanakanaEnableChange.bind(this));
window.addEventListener('copy', this._onCopy.bind(this));
this._clipboardMonitor.on('change', this._onExternalSearchUpdate.bind(this));
@@ -146,15 +148,20 @@ class SearchDisplayController {
this._setWanakanaEnabled(enableWanakana);
}
- _onContentUpdateStart({type, query, content}) {
+ _onContentUpdateStart({type, query}) {
let animate = false;
let valid = false;
+ let showBackButton = false;
switch (type) {
case 'terms':
case 'kanji':
- animate = !!content.animate;
- valid = (typeof query === 'string' && query.length > 0);
- this._display.blurElement(this._queryInput);
+ {
+ const {content, state} = this._display.history;
+ animate = (typeof content === 'object' && content !== null && content.animate === true);
+ showBackButton = (typeof state === 'object' && state !== null && state.cause === 'queryParser');
+ valid = (typeof query === 'string' && query.length > 0);
+ this._display.blurElement(this._queryInput);
+ }
break;
case 'clear':
valid = false;
@@ -165,6 +172,8 @@ class SearchDisplayController {
if (typeof query !== 'string') { query = ''; }
+ this._searchBackButton.hidden = !showBackButton;
+
if (this._queryInput.value !== query) {
this._queryInput.value = query;
this._updateSearchHeight(true);
@@ -193,6 +202,10 @@ class SearchDisplayController {
this._search(true, 'new', true, null);
}
+ _onSearchBackButtonClick() {
+ this._display.history.back();
+ }
+
_onCopy() {
// ignore copy from search page
this._clipboardMonitor.setPreviousText(window.getSelection().toString().trim());