细节调整及优化(26.8.3)

This commit is contained in:
zhongluofeng
2026-08-21 17:25:47 +08:00
parent 0a19b4b38a
commit 4dd60f42a1
72 changed files with 4779 additions and 1395 deletions
+39 -2
View File
@@ -2,6 +2,7 @@
//!
//! 表结构见 `init_db`。所有方法线程安全(内部 Mutex 包裹 Connection)。
use base64::Engine as _;
use rusqlite::{params, Connection, OptionalExtension};
use specta::Type;
use std::fs;
@@ -38,6 +39,8 @@ pub struct NewItem {
pub kind: String,
pub content: Option<String>,
pub blob: Option<Vec<u8>>,
/// 图片缩略图 PNG(仅 image 类型,供弹窗悬停预览)
pub thumb: Option<Vec<u8>>,
pub preview: String,
pub size: i64,
pub hash: String,
@@ -88,6 +91,19 @@ impl Storage {
CREATE INDEX IF NOT EXISTS idx_hash ON clipboard_history(hash);
CREATE INDEX IF NOT EXISTS idx_kind ON clipboard_history(kind);",
);
// 迁移:老库无 thumb 列(图片缩略图,供弹窗悬停预览),补列
let has_thumb = conn
.prepare("PRAGMA table_info(clipboard_history)")
.ok()
.map(|mut stmt| {
stmt.query_map([], |r| r.get::<_, String>(1))
.map(|rows| rows.filter_map(|c| c.ok()).any(|c| c == "thumb"))
.unwrap_or(false)
})
.unwrap_or(false);
if !has_thumb {
let _ = conn.execute("ALTER TABLE clipboard_history ADD COLUMN thumb BLOB", []);
}
}
/// 插入新条目;若 dedup 为 true 且 hash 已存在则仅更新 created_at,返回条目 id。
@@ -120,12 +136,13 @@ impl Storage {
let now = now_ms();
let res = conn.execute(
"INSERT INTO clipboard_history
(kind, content, blob, preview, size, hash, pinned, pinned_order, created_at)
VALUES (?1, ?2, ?3, ?4, ?5, ?6, 0, NULL, ?7)",
(kind, content, blob, thumb, preview, size, hash, pinned, pinned_order, created_at)
VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, 0, NULL, ?8)",
params![
item.kind,
item.content,
item.blob.as_deref(),
item.thumb.as_deref(),
item.preview,
item.size,
item.hash,
@@ -249,6 +266,26 @@ impl Storage {
})
}
/// 获取图片缩略图 PNG base64(弹窗悬停预览用)。
/// 老数据无缩略图时回退为 `thumb_from_dib` 现场生成。
pub fn get_thumb(&self, id: i64, thumb_from_dib: impl Fn(&[u8]) -> Option<Vec<u8>>) -> Option<String> {
let (thumb, blob) = {
let conn = self.conn.lock().ok()?;
conn.query_row(
"SELECT thumb, blob FROM clipboard_history WHERE id = ?1 AND kind = 'image'",
params![id],
|r| Ok((r.get::<_, Option<Vec<u8>>>(0)?, r.get::<_, Option<Vec<u8>>>(1)?)),
)
.ok()?
};
// conn 已在此处释放
let png = match thumb {
Some(t) if !t.is_empty() => Some(t),
_ => blob.as_deref().and_then(|b| thumb_from_dib(b)),
};
png.map(|p| base64::engine::general_purpose::STANDARD.encode(&p))
}
/// 获取原始字段供 copy_back 写回(避免 base64 转换开销)
pub fn get_raw_for_copy(&self, id: i64) -> Option<(String, Option<String>, Option<Vec<u8>>)> {
let conn = self.conn.lock().ok()?;