Merge pull request #21 from hilios/master

Fix #20, Add the cliprect option to control the portion of the viewport that will be rendered
superbrothers · Feb 7, 2015 · 460121e · 460121e
2 parents 35f56ed + 66d8dd8
commit 460121e
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diff --git a/README.md b/README.md
@@ -31,6 +31,7 @@ Options:
   -A, --user-agent <value>         UserAgent
   -J, --javascript-file <value>    Inject external script code on Web page
   -V, --viewportsize <value>       ViewPortSize {width}x{height}
+  -C, --cliprect <value>           ClipRect {top}x{left}x{width}x{height} that will be rendered
   -c, --cookies-file <value>       Cookies file
   -T, --timeout <value>            HTTP Timeout (ms)
   -R, --renderdelay <value>        Render delay (ms)

diff --git a/lib/capturejs.js b/lib/capturejs.js
@@ -28,6 +28,14 @@ module.exports.capture = function (option, callback) {
                 }
             }
 
+            // clipRect option
+            if (option.cliprect) {
+                matches = option.cliprect.match(/^(\d+)x(\d+)x(\d+)x(\d+)$/);
+                if (matches !== null) {
+                    page.set("clipRect", {top: matches[1], left: matches[2], width: matches[3], height: matches[4]});
+                }
+            }
+
             // UserAgent option
             if (option["user-agent"]) {
                 page.set("settings.userAgent", option["user-agent"]);

diff --git a/lib/cli.js b/lib/cli.js
@@ -18,6 +18,7 @@ cli.start = function (argv) {
             "user-agent": String,
             "javascript-file": path,
             viewportsize: String,
+            cliprect: String,
             "cookies-file": path,
             timeout: Number,
             renderdelay: Number,
@@ -34,6 +35,7 @@ cli.start = function (argv) {
             A: "--user-agent",
             J: "--javascript-file",
             V: "--viewportsize",
+            C: "--cliprect",
             c: "--cookies-file",
             T: "--timeout",
             R: "--renderdelay",