细节调整及优化(26.8.3)
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@@ -1,12 +1,13 @@
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//! Tauri 命令:截图模块
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//!
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//! 命令清单:
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//! - screenshot_capture_fullscreen:捕获虚拟屏并存入静态(不做 PNG 编码)
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//! - screenshot_capture_fullscreen:捕获虚拟屏并存入静态(不做 PNG 编码),返回捕获时刻光标坐标
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//! - screenshot_get_fullscreen_bmp:取出全屏捕获的 BMP 原始字节(raw IPC,覆盖层显示用,不移除)
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//! - screenshot_fullscreen_png:全屏捕获编码 PNG base64 并清除(全屏截图进编辑器用)
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//! - screenshot_clear_fullscreen:清除静态全屏捕获(覆盖层关闭时)
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//! - screenshot_crop_stored:按物理像素裁剪已存储的全屏捕获
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//! - screenshot_window_from_point:拾取指定屏幕坐标下的顶层窗口
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//! - screenshot_pick_list:枚举可拾取顶层窗口(Z 序,前端缓存后本地命中测试)
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//! - screenshot_show_overlay:一次 IPC 完成覆盖层 show + focus(关键路径减少往返)
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//! - screenshot_enum_windows:枚举可见顶层窗口
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//! - screenshot_capture_window:按 hwnd 捕获指定窗口
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//! - screenshot_set_editor_image / screenshot_get_editor_image:编辑器图片传递
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@@ -14,7 +15,7 @@
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//! - screenshot_save_png:写入文件
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//! - screenshot_disable_transitions:禁用窗口显示/隐藏过渡动画(消除覆盖层缩放动画)
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use super::{CaptureData, WindowInfo};
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use super::{CaptureData, CaptureStart, WindowInfo};
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use tauri::{Emitter, Manager};
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/// 禁用指定窗口(按 label 查找)的显示/隐藏过渡动画,消除覆盖层出现/消失时的缩放动画
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@@ -88,16 +89,19 @@ pub async fn screenshot_unregister_pin_shortcut(app: tauri::AppHandle) -> Result
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Ok(())
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}
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/// 捕获整个虚拟屏(多显示器拼接)存入静态,不做 PNG 编码
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/// 捕获整个虚拟屏(多显示器拼接)存入静态,不做 PNG 编码。
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/// 同时返回捕获时刻的光标物理坐标(覆盖层据此做初始窗口拾取,省一次 IPC 往返)。
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#[tauri::command]
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#[specta::specta]
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pub async fn screenshot_capture_fullscreen() -> Result<(), String> {
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pub async fn screenshot_capture_fullscreen() -> Result<CaptureStart, String> {
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#[cfg(windows)]
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{
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// 屏幕捕获涉及 GDI 调用,放线程池避免阻塞 async 调度
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tauri::async_runtime::spawn_blocking(|| {
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let img = super::capture::capture_virtual_screen()?;
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super::capture::store_fullscreen(img)
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super::capture::store_fullscreen(img)?;
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let (cursor_x, cursor_y) = super::capture::cursor_pos().unwrap_or((0, 0));
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Ok(CaptureStart { cursor_x, cursor_y })
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})
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.await
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.map_err(|e| format!("捕获任务失败: {}", e))?
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@@ -205,29 +209,39 @@ pub async fn screenshot_crop_copy_stored(
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}
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}
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/// 拾取指定物理屏幕坐标下的顶层窗口
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/// 枚举可拾取的顶层窗口(Z 序顶→底,排除本进程/不可见/工具窗口)。
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/// 前端在截图开始时缓存列表,鼠标移动时在 JS 侧本地命中测试,消除逐帧 IPC 往返。
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#[tauri::command]
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#[specta::specta]
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pub async fn screenshot_window_from_point(
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x: i32,
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y: i32,
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) -> Result<Option<WindowInfo>, String> {
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pub async fn screenshot_pick_list() -> Result<Vec<WindowInfo>, String> {
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#[cfg(windows)]
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{
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tauri::async_runtime::spawn_blocking(move || {
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Ok(super::capture::window_from_point(x, y))
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})
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.await
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.map_err(|e| format!("查询失败: {}", e))?
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tauri::async_runtime::spawn_blocking(super::capture::pick_windows)
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.await
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.map_err(|e| format!("枚举失败: {}", e))
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}
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#[cfg(not(windows))]
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{
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let _ = (x, y);
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Ok(None)
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Ok(vec![])
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}
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}
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/// 获取当前鼠标物理屏幕坐标(覆盖层打开时定位初始悬停窗口)
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/// 一次 IPC 完成指定窗口的显示与聚焦(截图覆盖层显示关键路径,减少串行往返)
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#[tauri::command]
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#[specta::specta]
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pub async fn screenshot_show_overlay(
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app: tauri::AppHandle,
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label: String,
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) -> Result<(), String> {
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let win = app
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.get_webview_window(&label)
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.ok_or_else(|| format!("窗口不存在: {}", label))?;
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win.show().map_err(|e| format!("显示窗口失败: {}", e))?;
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win.set_focus().map_err(|e| format!("聚焦窗口失败: {}", e))?;
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Ok(())
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}
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/// 获取当前鼠标物理屏幕坐标(贴图窗口拖动跟随等场景使用)
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#[tauri::command]
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#[specta::specta]
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pub async fn screenshot_cursor_pos() -> Result<(i32, i32), String> {
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@@ -433,6 +447,22 @@ pub async fn screenshot_load_cache(
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.map_err(|e| format!("读取缓存任务失败: {}", e))?
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}
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/// 读取历史缓存 PNG 原始字节(raw IPC → 前端 ArrayBuffer,贴图窗口显示用:
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/// 跳过 base64 编码,IPC 传输与前端内存占用均省 ~33%;同 get_fullscreen_bmp 豁免 specta)
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#[tauri::command]
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pub async fn screenshot_load_cache_raw(
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app: tauri::AppHandle,
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path: String,
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) -> Result<tauri::ipc::Response, String> {
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tauri::async_runtime::spawn_blocking(move || {
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let p = ensure_in_history_dir(&app, &path)?;
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let bytes = std::fs::read(&p).map_err(|e| format!("读取缓存失败: {}", e))?;
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Ok(tauri::ipc::Response::new(bytes))
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})
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.await
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.map_err(|e| format!("读取缓存任务失败: {}", e))?
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}
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/// 删除历史缓存文件(历史项移除/清空时调用,静默忽略不存在文件)
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#[tauri::command]
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#[specta::specta]
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