feat: add init scripts (#361)

plugins/window/src/desktop_commands.rs

@@ -182,6 +182,7 @@ pub fn internal_toggle_maximize<R: Runtime>(
     Ok(())
 }
 
+#[cfg(any(debug_assertions, feature = "devtools"))]
 #[tauri::command]
 pub fn internal_toggle_devtools<R: Runtime>(
     window: Window<R>,

plugins/window/src/lib.rs

@@ -7,7 +7,18 @@ use tauri::{
 mod desktop_commands;
 
 pub fn init<R: Runtime>() -> TauriPlugin<R> {
+    let mut init_js = String::new();
+    // window.print works on Linux/Windows; need to use the API on macOS
+    #[cfg(any(target_os = "macos", target_os = "ios"))]
+    {
+        init_js.push_str(include_str!("./scripts/print.js"));
+    }
+    init_js.push_str(include_str!("./scripts/drag.js"));
+    #[cfg(any(debug_assertions, feature = "devtools"))]
+    init_js.push_str(include_str!("./scripts/toggle-devtools.js"));
+
     Builder::new("window")
+        .js_init_script(init_js)
         .invoke_handler(|invoke| {
             #[cfg(desktop)]
             {

plugins/window/src/scripts/drag.js

@@ -0,0 +1,17 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
+document.addEventListener('mousedown', (e) => {
+  if (e.target.hasAttribute('data-tauri-drag-region') && e.buttons === 1) {
+    // prevents text cursor
+    e.preventDefault()
+    // fix #2549: double click on drag region edge causes content to maximize without window sizing change
+    // https://github.com/tauri-apps/tauri/issues/2549#issuecomment-1250036908
+    e.stopImmediatePropagation()
+
+    // start dragging if the element has a `tauri-drag-region` data attribute and maximize on double-clicking it
+    const cmd = e.detail === 2 ? 'internal_toggle_maximize' : 'start_dragging'
+    window.__TAURI_INVOKE__('plugin:window|' + cmd)
+  }
+})

plugins/window/src/scripts/print.js

@@ -0,0 +1,7 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
+window.print = function () {
+  return window.__TAURI_INVOKE__('plugin:window|print')
+}

plugins/window/src/scripts/toggle-devtools.js

@@ -0,0 +1,26 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
+;(function () {
+  function toggleDevtoolsHotkey() {
+    const isHotkey = navigator.appVersion.includes('Mac')
+      ? event => event.metaKey && event.altKey && event.key === 'I'
+      : event => event.ctrlKey && event.shiftKey && event.key === 'I'
+
+    document.addEventListener('keydown', event => {
+      if (isHotkey(event)) {
+        window.__TAURI_INVOKE__('plugin:window|internal_toggle_devtools');
+      }
+    })
+  }
+
+  if (
+    document.readyState === 'complete' ||
+    document.readyState === 'interactive'
+  ) {
+    toggleDevtoolsHotkey()
+  } else {
+    window.addEventListener('DOMContentLoaded', toggleDevtoolsHotkey, true)
+  }
+})()