WebInspector: Implement Inspect Element action

src/lib/popupwindow/popupwebview.cpp

@@ -74,9 +74,15 @@ void PopupWebView::requestFullScreen(bool enable)
 
 void PopupWebView::inspectElement()
 {
-    WebInspector *inspector = new WebInspector;
-    inspector->setView(this);
-    inspector->show();
+    if (m_inspector) {
+        triggerPageAction(QWebEnginePage::InspectElement);
+        return;
+    }
+
+    m_inspector = new WebInspector;
+    m_inspector->setView(this);
+    m_inspector->inspectElement();
+    m_inspector->show();
 }
 
 void PopupWebView::_contextMenuEvent(QContextMenuEvent *event)

src/lib/popupwindow/popupwebview.h

@@ -18,11 +18,14 @@
 #ifndef POPUPWEBVIEW_H
 #define POPUPWEBVIEW_H
 
+#include <QPointer>
+
 #include "qzcommon.h"
 #include "webview.h"
 
-class LoadRequest;
 class Menu;
+class LoadRequest;
+class WebInspector;
 
 class QUPZILLA_EXPORT PopupWebView : public WebView
 {
@@ -44,6 +47,7 @@ private:
     void _contextMenuEvent(QContextMenuEvent *event) Q_DECL_OVERRIDE;
 
     Menu* m_menu;
+    QPointer<WebInspector> m_inspector;
 };
 
 #endif // POPUPWEBVIEW_H

src/lib/webengine/webinspector.cpp

@@ -28,6 +28,7 @@ QList<QWebEngineView*> WebInspector::s_views;
 
 WebInspector::WebInspector(QWidget *parent)
     : QWebEngineView(parent)
+    , m_view(Q_NULLPTR)
 {
     setAttribute(Qt::WA_DeleteOnClose);
     setObjectName(QSL("web-inspector"));
@@ -36,7 +37,7 @@ WebInspector::WebInspector(QWidget *parent)
     registerView(this);
 
     connect(page(), &QWebEnginePage::windowCloseRequested, this, &WebInspector::deleteLater);
-    connect(page(), &QWebEnginePage::loadFinished, this, &WebInspector::updateCloseButton);
+    connect(page(), &QWebEnginePage::loadFinished, this, &WebInspector::loadFinished);
 }
 
 WebInspector::~WebInspector()
@@ -46,8 +47,10 @@ WebInspector::~WebInspector()
 
 void WebInspector::setView(QWebEngineView *view)
 {
+    m_view = view;
+
     QUrl inspectorUrl = QUrl(QSL("http://localhost:%1").arg(WEBINSPECTOR_PORT));
-    int index = s_views.indexOf(view);
+    int index = s_views.indexOf(m_view);
 
     QNetworkReply *reply = mApp->networkManager()->get(QNetworkRequest(inspectorUrl.resolved(QUrl("json/list"))));
     connect(reply, &QNetworkReply::finished, this, [=]() {
@@ -63,6 +66,11 @@ void WebInspector::setView(QWebEngineView *view)
     });
 }
 
+void WebInspector::inspectElement()
+{
+    m_inspectElement = true;
+}
+
 void WebInspector::pushView(QWebEngineView *view)
 {
     s_views.removeOne(view);
@@ -79,8 +87,9 @@ void WebInspector::unregisterView(QWebEngineView *view)
     s_views.removeOne(view);
 }
 
-void WebInspector::updateCloseButton()
+void WebInspector::loadFinished()
 {
+    // Update close button
     page()->runJavaScript(QL1S("var toolbar = document.getElementsByClassName('inspector-view-toolbar')[1];"
                                "var button = document.createElement('button');"
                                "button.style.width = '22px';"
@@ -93,6 +102,12 @@ void WebInspector::updateCloseButton()
                                "    window.close();"
                                "});"
                                "toolbar.appendChild(button);"));
+
+    // Inspect element
+    if (m_inspectElement) {
+        m_view->triggerPageAction(QWebEnginePage::InspectElement);
+        m_inspectElement = false;
+    }
 }
 
 void WebInspector::keyPressEvent(QKeyEvent *event)

src/lib/webengine/webinspector.h

@@ -35,19 +35,23 @@ public:
     ~WebInspector();
 
     void setView(QWebEngineView *view);
+    void inspectElement();
 
     static void pushView(QWebEngineView *view);
     static void registerView(QWebEngineView *view);
     static void unregisterView(QWebEngineView *view);
 
 private slots:
-    void updateCloseButton();
+    void loadFinished();
 
 private:
     void keyPressEvent(QKeyEvent *event) Q_DECL_OVERRIDE;
     void keyReleaseEvent(QKeyEvent *event) Q_DECL_OVERRIDE;
 
     static QList<QWebEngineView*> s_views;
+
+    bool m_inspectElement;
+    QWebEngineView *m_view;
 };
 
 #endif // WEBINSPECTORDOCKWIDGET_H

src/lib/webtab/tabbedwebview.cpp

@@ -69,7 +69,10 @@ void TabbedWebView::setBrowserWindow(BrowserWindow* window)
 
 void TabbedWebView::inspectElement()
 {
-    m_webTab->showWebInspector();
+    if (m_webTab->haveInspector())
+        triggerPageAction(QWebEnginePage::InspectElement);
+    else
+        m_webTab->showWebInspector(true);
 }
 
 WebTab* TabbedWebView::webTab() const

src/lib/webtab/webtab.cpp

@@ -142,24 +142,29 @@ TabbedWebView* WebTab::webView() const
     return m_webView;
 }
 
-void WebTab::showWebInspector()
+bool WebTab::haveInspector() const
 {
-    if (m_splitter->count() != 1)
+    return m_splitter->count() > 1 && m_splitter->widget(1)->inherits("WebInspector");
+}
+
+void WebTab::showWebInspector(bool inspectElement)
+{
+    if (haveInspector())
         return;
 
     WebInspector *inspector = new WebInspector(this);
     inspector->setView(m_webView);
+    if (inspectElement)
+        inspector->inspectElement();
+
     m_splitter->addWidget(inspector);
 }
 
 void WebTab::toggleWebInspector()
 {
-    if (m_splitter->count() == 1) {
+    if (!haveInspector())
         showWebInspector();
-        return;
-    }
-
-    if (m_splitter->count() > 1 && m_splitter->widget(1)->inherits("WebInspector"))
+    else
         delete m_splitter->widget(1);
 }
 

src/lib/webtab/webtab.h

@@ -85,7 +85,8 @@ public:
 
     bool isCurrentTab() const;
 
-    void showWebInspector();
+    bool haveInspector() const;
+    void showWebInspector(bool inspectElement = false);
     void toggleWebInspector();
 
     bool isRestored() const;